631904304 has 40 divisors (see below), whose sum is σ = 1641460912. Its totient is φ = 209468160.

The previous prime is 631904281. The next prime is 631904309. The reversal of 631904304 is 403409136.

It is not an unprimeable number, because it can be changed into a prime (631904309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27679 + ... + 45054.

Almost surely, 2^631904304 is an apocalyptic number.

It is an amenable number.

631904304 is an abundant number, since it is smaller than the sum of its proper divisors (1009556608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631904304 is a wasteful number, since it uses less digits than its factorization.

631904304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72925 (or 72919 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 631904304 is about 25137.7068166529. The cubic root of 631904304 is about 858.1247692668.

The spelling of 631904304 in words is "six hundred thirty-one million, nine hundred four thousand, three hundred four".