23015872 has 28 divisors (see below), whose sum is σ = 49825656. Its totient is φ = 10461440.

The previous prime is 23015851. The next prime is 23015899. The reversal of 23015872 is 27851032.

It is a self number, because there is not a number n which added to its sum of digits gives 23015872.

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, 15643 + ... + 17050.

Almost surely, 2^23015872 is an apocalyptic number.

23015872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23015872 is an abundant number, since it is smaller than the sum of its proper divisors (26809784).

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

23015872 is a wasteful number, since it uses less digits than its factorization.

23015872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32716 (or 32706 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 23015872 is about 4797.4860083173. The cubic root of 23015872 is about 284.4521001267.

The spelling of 23015872 in words is "twenty-three million, fifteen thousand, eight hundred seventy-two".