231432996 has 24 divisors (see below), whose sum is σ = 568432480. Its totient is φ = 73084032.

The previous prime is 231432991. The next prime is 231433001. The reversal of 231432996 is 699234132.

231432996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231432991) and next prime (231433001).

It is a super-2 number, since 2×231432996² = 107122463275072032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231432991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507301 + ... + 507756.

Almost surely, 2^231432996 is an apocalyptic number.

It is an amenable number.

231432996 is an abundant number, since it is smaller than the sum of its proper divisors (336999484).

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

231432996 is a wasteful number, since it uses less digits than its factorization.

231432996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015083 (or 1015081 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 231432996 is about 15212.9220072937. The cubic root of 231432996 is about 613.9623774901.

The spelling of 231432996 in words is "two hundred thirty-one million, four hundred thirty-two thousand, nine hundred ninety-six".