18059118 has 32 divisors (see below), whose sum is σ = 45031680. Its totient is φ = 4690560.

The previous prime is 18059099. The next prime is 18059137. The reversal of 18059118 is 81195081.

It is an interprime number because it is at equal distance from previous prime (18059099) and next prime (18059137).

It is a super-2 number, since 2×18059118² = 652263485875848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19083 + ... + 20006.

It is an arithmetic number, because the mean of its divisors is an integer number (1407240).

Almost surely, 2^18059118 is an apocalyptic number.

18059118 is an abundant number, since it is smaller than the sum of its proper divisors (26972562).

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

18059118 is a wasteful number, since it uses less digits than its factorization.

18059118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39112.

The product of its (nonzero) digits is 2880, while the sum is 33.

The square root of 18059118 is about 4249.6020990206. The cubic root of 18059118 is about 262.3607388308.

The spelling of 18059118 in words is "eighteen million, fifty-nine thousand, one hundred eighteen".