18864652 has 6 divisors (see below), whose sum is σ = 33013148. Its totient is φ = 9432324.

The previous prime is 18864641. The next prime is 18864653. The reversal of 18864652 is 25646881.

It is a super-2 number, since 2×18864652² = 711750190162208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18864653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2358078 + ... + 2358085.

Almost surely, 2^18864652 is an apocalyptic number.

It is an amenable number.

18864652 is a deficient number, since it is larger than the sum of its proper divisors (14148496).

18864652 is a wasteful number, since it uses less digits than its factorization.

18864652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716167 (or 4716165 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 18864652 is about 4343.3457149990. The cubic root of 18864652 is about 266.2050353509.

The spelling of 18864652 in words is "eighteen million, eight hundred sixty-four thousand, six hundred fifty-two".