231915468 has 12 divisors (see below), whose sum is σ = 541136120. Its totient is φ = 77305152.

The previous prime is 231915461. The next prime is 231915487. The reversal of 231915468 is 864519132.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (231915461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9663133 + ... + 9663156.

Almost surely, 2^231915468 is an apocalyptic number.

It is an amenable number.

231915468 is an abundant number, since it is smaller than the sum of its proper divisors (309220652).

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

231915468 is a wasteful number, since it uses less digits than its factorization.

231915468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19326296 (or 19326294 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 231915468 is about 15228.7710600692. The cubic root of 231915468 is about 614.3887270237.

The spelling of 231915468 in words is "two hundred thirty-one million, nine hundred fifteen thousand, four hundred sixty-eight".