18842684 has 12 divisors (see below), whose sum is σ = 37685424. Its totient is φ = 8075424.

The previous prime is 18842651. The next prime is 18842693. The reversal of 18842684 is 48624881.

18842684 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 336449 + ... + 336504.

It is an arithmetic number, because the mean of its divisors is an integer number (3140452).

Almost surely, 2^18842684 is an apocalyptic number.

18842684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18842684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18842684 is a wasteful number, since it uses less digits than its factorization.

18842684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672964 (or 672962 counting only the distinct ones).

The product of its digits is 98304, while the sum is 41.

The square root of 18842684 is about 4340.8160523109. The cubic root of 18842684 is about 266.1016627630.

The spelling of 18842684 in words is "eighteen million, eight hundred forty-two thousand, six hundred eighty-four".