231078464 has 28 divisors (see below), whose sum is σ = 473342208. Its totient is φ = 111811200.

The previous prime is 231078457. The next prime is 231078473. The reversal of 231078464 is 464870132.

231078464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 56252 + ... + 60219.

Almost surely, 2^231078464 is an apocalyptic number.

It is an amenable number.

231078464 is an abundant number, since it is smaller than the sum of its proper divisors (242263744).

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

231078464 is a wasteful number, since it uses less digits than its factorization.

231078464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116514 (or 116504 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 231078464 is about 15201.2652105014. The cubic root of 231078464 is about 613.6487077927.

The spelling of 231078464 in words is "two hundred thirty-one million, seventy-eight thousand, four hundred sixty-four".