231407464 has 16 divisors (see below), whose sum is σ = 435262500. Its totient is φ = 115337472.

The previous prime is 231407459. The next prime is 231407471. The reversal of 231407464 is 464704132.

It can be written as a sum of positive squares in 2 ways, for example, as 149866564 + 81540900 = 12242^2 + 9030^2 .

It is a super-2 number, since 2×231407464² = 107098828789822592, which contains 22 as substring.

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, 43089 + ... + 48160.

Almost surely, 2^231407464 is an apocalyptic number.

It is an amenable number.

231407464 is a deficient number, since it is larger than the sum of its proper divisors (203855036).

231407464 is a wasteful number, since it uses less digits than its factorization.

231407464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91572 (or 91568 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 231407464 is about 15212.0828291198. The cubic root of 231407464 is about 613.9397989408.

The spelling of 231407464 in words is "two hundred thirty-one million, four hundred seven thousand, four hundred sixty-four".