431311872 has 44 divisors (see below), whose sum is σ = 1149611576. Its totient is φ = 143769600.

The previous prime is 431311871. The next prime is 431311873. The reversal of 431311872 is 278113134.

It is an interprime number because it is at equal distance from previous prime (431311871) and next prime (431311873).

It is not an unprimeable number, because it can be changed into a prime (431311871) 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 3 ways as a sum of consecutive naturals, for example, 67129 + ... + 73272.

Almost surely, 2^431311872 is an apocalyptic number.

It is an amenable number.

431311872 is an abundant number, since it is smaller than the sum of its proper divisors (718299704).

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

431311872 is a wasteful number, since it uses less digits than its factorization.

431311872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140424 (or 140406 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 431311872 is about 20768.0493065670. The cubic root of 431311872 is about 755.5510337804.

The spelling of 431311872 in words is "four hundred thirty-one million, three hundred eleven thousand, eight hundred seventy-two".