18364156 has 12 divisors (see below), whose sum is σ = 32194960. Its totient is φ = 9165600.

The previous prime is 18364117. The next prime is 18364201. The reversal of 18364156 is 65146381.

It is a happy number.

It is a hoax number, since the sum of its digits (34) 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416 + ... + 6223.

Almost surely, 2^18364156 is an apocalyptic number.

It is an amenable number.

18364156 is a deficient number, since it is larger than the sum of its proper divisors (13830804).

18364156 is a wasteful number, since it uses less digits than its factorization.

18364156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8244 (or 8242 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 18364156 is about 4285.3419933536. The cubic root of 18364156 is about 263.8296843006.

The spelling of 18364156 in words is "eighteen million, three hundred sixty-four thousand, one hundred fifty-six".