18055924 has 12 divisors (see below), whose sum is σ = 31998400. Its totient is φ = 8913528.

The previous prime is 18055913. The next prime is 18055927. The reversal of 18055924 is 42955081.

It is a self number, because there is not a number n which added to its sum of digits gives 18055924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18055927) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28254 + ... + 28885.

Almost surely, 2^18055924 is an apocalyptic number.

It is an amenable number.

18055924 is a deficient number, since it is larger than the sum of its proper divisors (13942476).

18055924 is a wasteful number, since it uses less digits than its factorization.

18055924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57222 (or 57220 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 18055924 is about 4249.2262825131. The cubic root of 18055924 is about 262.3452705669.

The spelling of 18055924 in words is "eighteen million, fifty-five thousand, nine hundred twenty-four".