18059004 has 24 divisors (see below), whose sum is σ = 46819920. Its totient is φ = 6019632.

The previous prime is 18058991. The next prime is 18059021. The reversal of 18059004 is 40095081.

It is a super-2 number, since 2×18059004² = 652255250944032, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83499 + ... + 83714.

It is an arithmetic number, because the mean of its divisors is an integer number (1950830).

Almost surely, 2^18059004 is an apocalyptic number.

It is an amenable number.

18059004 is an abundant number, since it is smaller than the sum of its proper divisors (28760916).

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

18059004 is a wasteful number, since it uses less digits than its factorization.

18059004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167226 (or 167218 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 18059004 is about 4249.5886859789. The cubic root of 18059004 is about 262.3601867701.

The spelling of 18059004 in words is "eighteen million, fifty-nine thousand, four".