18682984 has 16 divisors (see below), whose sum is σ = 35845920. Its totient is φ = 9124080.

The previous prime is 18682981. The next prime is 18682997. The reversal of 18682984 is 48928681.

It is a super-2 number, since 2×18682984² = 698107782288512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18682981) 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, 26812 + ... + 27499.

It is an arithmetic number, because the mean of its divisors is an integer number (2240370).

Almost surely, 2^18682984 is an apocalyptic number.

It is an amenable number.

18682984 is a deficient number, since it is larger than the sum of its proper divisors (17162936).

18682984 is a wasteful number, since it uses less digits than its factorization.

18682984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54360 (or 54356 counting only the distinct ones).

The product of its digits is 221184, while the sum is 46.

The square root of 18682984 is about 4322.3817508406. The cubic root of 18682984 is about 265.3477527804.

The spelling of 18682984 in words is "eighteen million, six hundred eighty-two thousand, nine hundred eighty-four".