18918088 has 32 divisors (see below), whose sum is σ = 40680000. Its totient is φ = 8079552.

The previous prime is 18918079. The next prime is 18918101. The reversal of 18918088 is 88081981.

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, 27606 + ... + 28282.

It is an arithmetic number, because the mean of its divisors is an integer number (1271250).

Almost surely, 2^18918088 is an apocalyptic number.

It is an amenable number.

18918088 is an abundant number, since it is smaller than the sum of its proper divisors (21761912).

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

18918088 is a wasteful number, since it uses less digits than its factorization.

18918088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 43.

The square root of 18918088 is about 4349.4928439992. The cubic root of 18918088 is about 266.4561491304.

The spelling of 18918088 in words is "eighteen million, nine hundred eighteen thousand, eighty-eight".