18564952 has 32 divisors (see below), whose sum is σ = 42124320. Its totient is φ = 7488000.

The previous prime is 18564947. The next prime is 18564961. The reversal of 18564952 is 25946581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8799 + ... + 10702.

It is an arithmetic number, because the mean of its divisors is an integer number (1316385).

Almost surely, 2^18564952 is an apocalyptic number.

It is an amenable number.

18564952 is an abundant number, since it is smaller than the sum of its proper divisors (23559368).

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

18564952 is a wasteful number, since it uses less digits than its factorization.

18564952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19531 (or 19527 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 18564952 is about 4308.7065344486. The cubic root of 18564952 is about 264.7877831063.

The spelling of 18564952 in words is "eighteen million, five hundred sixty-four thousand, nine hundred fifty-two".