18366088 has 16 divisors (see below), whose sum is σ = 37085580. Its totient is φ = 8476608.

The previous prime is 18366071. The next prime is 18366091. The reversal of 18366088 is 88066381.

It can be written as a sum of positive squares in 2 ways, for example, as 17791524 + 574564 = 4218^2 + 758^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18366088.

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, 88195 + ... + 88402.

Almost surely, 2^18366088 is an apocalyptic number.

It is an amenable number.

18366088 is an abundant number, since it is smaller than the sum of its proper divisors (18719492).

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

18366088 is a wasteful number, since it uses less digits than its factorization.

18366088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176616 (or 176612 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 18366088 is about 4285.5674070069. The cubic root of 18366088 is about 263.8389360386.

The spelling of 18366088 in words is "eighteen million, three hundred sixty-six thousand, eighty-eight".