18162364 has 48 divisors (see below), whose sum is σ = 36723456. Its totient is φ = 7779200.

The previous prime is 18162359. The next prime is 18162413. The reversal of 18162364 is 46326181.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132504 + ... + 132640.

It is an arithmetic number, because the mean of its divisors is an integer number (765072).

Almost surely, 2^18162364 is an apocalyptic number.

It is an amenable number.

18162364 is an abundant number, since it is smaller than the sum of its proper divisors (18561092).

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

18162364 is a wasteful number, since it uses less digits than its factorization.

18162364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 304 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 18162364 is about 4261.7325115497. The cubic root of 18162364 is about 262.8597709365.

The spelling of 18162364 in words is "eighteen million, one hundred sixty-two thousand, three hundred sixty-four".