18996084 has 72 divisors (see below), whose sum is σ = 49969920. Its totient is φ = 6080832.

The previous prime is 18996077. The next prime is 18996097. The reversal of 18996084 is 48069981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174222 + ... + 174330.

Almost surely, 2^18996084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18996084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24984960).

18996084 is an abundant number, since it is smaller than the sum of its proper divisors (30973836).

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

18996084 is a wasteful number, since it uses less digits than its factorization.

18996084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 18996084 is about 4358.4497243860. The cubic root of 18996084 is about 266.8218312251.

The spelling of 18996084 in words is "eighteen million, nine hundred ninety-six thousand, eighty-four".