18048144 has 20 divisors (see below), whose sum is σ = 46624496. Its totient is φ = 6016032.

The previous prime is 18048139. The next prime is 18048161. The reversal of 18048144 is 44184081.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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, 187954 + ... + 188049.

Almost surely, 2^18048144 is an apocalyptic number.

It is an amenable number.

18048144 is an abundant number, since it is smaller than the sum of its proper divisors (28576352).

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

18048144 is a wasteful number, since it uses less digits than its factorization.

18048144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376014 (or 376008 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 18048144 is about 4248.3107230992. The cubic root of 18048144 is about 262.3075850696.

The spelling of 18048144 in words is "eighteen million, forty-eight thousand, one hundred forty-four".