18366332 has 12 divisors (see below), whose sum is σ = 32888856. Its totient is φ = 8969520.

The previous prime is 18366311. The next prime is 18366347. The reversal of 18366332 is 23366381.

It is a super-2 number, since 2×18366332² = 674644302268448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 53219 + ... + 53562.

It is an arithmetic number, because the mean of its divisors is an integer number (2740738).

Almost surely, 2^18366332 is an apocalyptic number.

It is an amenable number.

18366332 is a deficient number, since it is larger than the sum of its proper divisors (14522524).

18366332 is a wasteful number, since it uses less digits than its factorization.

18366332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106828 (or 106826 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 18366332 is about 4285.5958745547. The cubic root of 18366332 is about 263.8401044314.

The spelling of 18366332 in words is "eighteen million, three hundred sixty-six thousand, three hundred thirty-two".