23538864 has 20 divisors (see below), whose sum is σ = 60808856. Its totient is φ = 7846272.

The previous prime is 23538857. The next prime is 23538881. The reversal of 23538864 is 46883532.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 245149 + ... + 245244.

Almost surely, 2^23538864 is an apocalyptic number.

23538864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23538864 is an abundant number, since it is smaller than the sum of its proper divisors (37269992).

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

23538864 is a wasteful number, since it uses less digits than its factorization.

23538864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490404 (or 490398 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 23538864 is about 4851.6867170088. The cubic root of 23538864 is about 286.5905284245.

The spelling of 23538864 in words is "twenty-three million, five hundred thirty-eight thousand, eight hundred sixty-four".