18044154 has 32 divisors (see below), whose sum is σ = 40248000. Its totient is φ = 5992272.

The previous prime is 18044113. The next prime is 18044161. The reversal of 18044154 is 45144081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 20577 + ... + 21435.

It is an arithmetic number, because the mean of its divisors is an integer number (1257750).

Almost surely, 2^18044154 is an apocalyptic number.

18044154 is an abundant number, since it is smaller than the sum of its proper divisors (22203846).

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

18044154 is a wasteful number, since it uses less digits than its factorization.

18044154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259 (or 1253 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 18044154 is about 4247.8410987230. The cubic root of 18044154 is about 262.2882537301.

The spelling of 18044154 in words is "eighteen million, forty-four thousand, one hundred fifty-four".