23994564 has 24 divisors (see below), whose sum is σ = 61077408. Its totient is φ = 7271040.

The previous prime is 23994563. The next prime is 23994601. The reversal of 23994564 is 46549932.

It is not an unprimeable number, because it can be changed into a prime (23994563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90757 + ... + 91020.

It is an arithmetic number, because the mean of its divisors is an integer number (2544892).

Almost surely, 2^23994564 is an apocalyptic number.

It is an amenable number.

23994564 is an abundant number, since it is smaller than the sum of its proper divisors (37082844).

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

23994564 is a wasteful number, since it uses less digits than its factorization.

23994564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181795 (or 181793 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 23994564 is about 4898.4246447200. The cubic root of 23994564 is about 288.4281344485.

The spelling of 23994564 in words is "twenty-three million, nine hundred ninety-four thousand, five hundred sixty-four".