18886982 has 8 divisors (see below), whose sum is σ = 28672056. Its totient is φ = 9329632.

The previous prime is 18886963. The next prime is 18887009. The reversal of 18886982 is 28968881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18886982.

It is a congruent 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, 56723 + ... + 57054.

It is an arithmetic number, because the mean of its divisors is an integer number (3584007).

Almost surely, 2^18886982 is an apocalyptic number.

18886982 is a deficient number, since it is larger than the sum of its proper divisors (9785074).

18886982 is a wasteful number, since it uses less digits than its factorization.

18886982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113862.

The product of its digits is 442368, while the sum is 50.

The square root of 18886982 is about 4345.9155537125. The cubic root of 18886982 is about 266.3100291517.

The spelling of 18886982 in words is "eighteen million, eight hundred eighty-six thousand, nine hundred eighty-two".