18799808 has 28 divisors (see below), whose sum is σ = 37563552. Its totient is φ = 9335040.

The previous prime is 18799787. The next prime is 18799813. The reversal of 18799808 is 80899781.

It is a happy number.

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, 9113 + ... + 10983.

Almost surely, 2^18799808 is an apocalyptic number.

It is an amenable number.

18799808 is a deficient number, since it is larger than the sum of its proper divisors (18763744).

18799808 is a wasteful number, since it uses less digits than its factorization.

18799808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040 (or 2030 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 50.

The square root of 18799808 is about 4335.8745369302. The cubic root of 18799808 is about 265.8996738504.

The spelling of 18799808 in words is "eighteen million, seven hundred ninety-nine thousand, eight hundred eight".