231542868 has 48 divisors (see below), whose sum is σ = 554803200. Its totient is φ = 75122784.

The previous prime is 231542837. The next prime is 231542881. The reversal of 231542868 is 868245132.

It is a super-2 number, since 2×231542868² = 107224199443330848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111205 + ... + 113267.

It is an arithmetic number, because the mean of its divisors is an integer number (11558400).

Almost surely, 2^231542868 is an apocalyptic number.

It is an amenable number.

231542868 is an abundant number, since it is smaller than the sum of its proper divisors (323260332).

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

231542868 is a wasteful number, since it uses less digits than its factorization.

231542868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 2314 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 231542868 is about 15216.5327193812. The cubic root of 231542868 is about 614.0595209446.

The spelling of 231542868 in words is "two hundred thirty-one million, five hundred forty-two thousand, eight hundred sixty-eight".