> > A Yahoo search for "40,000" turns up 2 categories and 38 sites. Add these together and you get 40, which is 40,000 divided by 1,000. Also, 40,000 is a perfect square of two numbers which have 100 as factor. This can't be said of many numbers, with 10,000 and 90,000 being the closest.

Actually, I lied. This can be said of lots of numbers.