18983956 has 12 divisors (see below), whose sum is σ = 33292000. Its totient is φ = 9471960.

The previous prime is 18983929. The next prime is 18983957. The reversal of 18983956 is 65938981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18983957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2760 + ... + 6751.

Almost surely, 2^18983956 is an apocalyptic number.

It is an amenable number.

18983956 is a deficient number, since it is larger than the sum of its proper divisors (14308044).

18983956 is a wasteful number, since it uses less digits than its factorization.

18983956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10014 (or 10012 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The square root of 18983956 is about 4357.0581818470. The cubic root of 18983956 is about 266.7650352369.

The spelling of 18983956 in words is "eighteen million, nine hundred eighty-three thousand, nine hundred fifty-six".