18185968 has 10 divisors (see below), whose sum is σ = 35235344. Its totient is φ = 9092976.

The previous prime is 18185957. The next prime is 18185977. The reversal of 18185968 is 86958181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568296 + ... + 568327.

Almost surely, 2^18185968 is an apocalyptic number.

It is an amenable number.

18185968 is a deficient number, since it is larger than the sum of its proper divisors (17049376).

18185968 is a wasteful number, since it uses less digits than its factorization.

18185968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136631 (or 1136625 counting only the distinct ones).

The product of its digits is 138240, while the sum is 46.

The square root of 18185968 is about 4264.5009086645. The cubic root of 18185968 is about 262.9735934202.

The spelling of 18185968 in words is "eighteen million, one hundred eighty-five thousand, nine hundred sixty-eight".