18665052 has 48 divisors (see below), whose sum is σ = 51942912. Its totient is φ = 5100480.

The previous prime is 18665039. The next prime is 18665071. The reversal of 18665052 is 25056681.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 2899 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (1082144).

Almost surely, 2^18665052 is an apocalyptic number.

18665052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18665052 is an abundant number, since it is smaller than the sum of its proper divisors (33277860).

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

18665052 is a wasteful number, since it uses less digits than its factorization.

18665052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9698 (or 9696 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 18665052 is about 4320.3069335407. The cubic root of 18665052 is about 265.2628316737.

The spelling of 18665052 in words is "eighteen million, six hundred sixty-five thousand, fifty-two".