Is the House too small?

Facts:
1. In 1911, Congress arbitrarily decided that 435 was enough and set the number down in a statute.
2. The average U.S. congressional district now contains roughly 640,000 citizens, as opposed to about 200,000 in 1911.
3. From 65 members in its vintage 1789 configuration, the lower chamber grew steadily with each new census count, accommodating the growing population of the country.
4. The representation of minorities lags behind their percentage of the general population.
5. The U.S. population is 12.8 percent black and 14.4 percent Latino, but 9.4 percent and 5.1 percent in the U.S. house, respectively.

Questions:
1. How would the House's operation differ if it were smaller or larger?
2. Are there more advantages or disadvantages to a smaller House?
3. Where did the number 435 come from?
4. Were there issues with the 65 man House that made them decide to add more people?
5. Does the majority party have any advantages in the House?

Opinion:
In my opinion, I believe the House of Representatives should be even larger than 435. A country that prides itself in being a democracy should want as many people to have a say as possible. It is very important that big countries who have big populations should have big legislatures are well. With as many people as our country has, 435 people in the House is certainly not enough.