431608920 has 64 divisors (see below), whose sum is σ = 1370999520. Its totient is φ = 108324864.

The previous prime is 431608913. The next prime is 431608973. The reversal of 431608920 is 29806134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103747 + ... + 107826.

Almost surely, 2^431608920 is an apocalyptic number.

431608920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431608920 is an abundant number, since it is smaller than the sum of its proper divisors (939390600).

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

431608920 is a wasteful number, since it uses less digits than its factorization.

431608920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211604 (or 211600 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 431608920 is about 20775.1996380300. The cubic root of 431608920 is about 755.7244453606.

The spelling of 431608920 in words is "four hundred thirty-one million, six hundred eight thousand, nine hundred twenty".