18649996 has 24 divisors (see below), whose sum is σ = 33487776. Its totient is φ = 9085440.

The previous prime is 18649979. The next prime is 18650041. The reversal of 18649996 is 69994681.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27210 + ... + 27886.

It is an arithmetic number, because the mean of its divisors is an integer number (1395324).

Almost surely, 2^18649996 is an apocalyptic number.

It is an amenable number.

18649996 is a deficient number, since it is larger than the sum of its proper divisors (14837780).

18649996 is a wasteful number, since it uses less digits than its factorization.

18649996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 847 counting only the distinct ones).

The product of its digits is 839808, while the sum is 52.

The square root of 18649996 is about 4318.5641132210. The cubic root of 18649996 is about 265.1914885109.

The spelling of 18649996 in words is "eighteen million, six hundred forty-nine thousand, nine hundred ninety-six".