231240568 has 16 divisors (see below), whose sum is σ = 466928280. Its totient is φ = 106726368.

The previous prime is 231240553. The next prime is 231240593. The reversal of 231240568 is 865042132.

It is a congruent number.

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, 1111630 + ... + 1111837.

Almost surely, 2^231240568 is an apocalyptic number.

It is an amenable number.

231240568 is an abundant number, since it is smaller than the sum of its proper divisors (235687712).

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

231240568 is a wasteful number, since it uses less digits than its factorization.

231240568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223486 (or 2223482 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 231240568 is about 15206.5962003336. The cubic root of 231240568 is about 613.7921679499.

The spelling of 231240568 in words is "two hundred thirty-one million, two hundred forty thousand, five hundred sixty-eight".