431634944 has 40 divisors (see below), whose sum is σ = 928781700. Its totient is φ = 199213056.

The previous prime is 431634901. The next prime is 431634967. The reversal of 431634944 is 449436134.

It can be written as a sum of positive squares in 2 ways, for example, as 409657600 + 21977344 = 20240^2 + 4688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431634898 and 431634907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25769 + ... + 39080.

Almost surely, 2^431634944 is an apocalyptic number.

It is an amenable number.

431634944 is an abundant number, since it is smaller than the sum of its proper divisors (497146756).

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

431634944 is an equidigital number, since it uses as much as digits as its factorization.

431634944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64880 (or 64864 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 431634944 is about 20775.8259522937. The cubic root of 431634944 is about 755.7396339390.

The spelling of 431634944 in words is "four hundred thirty-one million, six hundred thirty-four thousand, nine hundred forty-four".