18083604 has 48 divisors (see below), whose sum is σ = 52609536. Its totient is φ = 4696800.

The previous prime is 18083603. The next prime is 18083623. The reversal of 18083604 is 40638081.

It is a happy number.

It is a super-3 number, since 3×18083604³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18083603) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8862 + ... + 10709.

It is an arithmetic number, because the mean of its divisors is an integer number (1096032).

Almost surely, 2^18083604 is an apocalyptic number.

18083604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18083604 is an abundant number, since it is smaller than the sum of its proper divisors (34525932).

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

18083604 is a wasteful number, since it uses less digits than its factorization.

18083604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19596 (or 19594 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 18083604 is about 4252.4820987278. The cubic root of 18083604 is about 262.4792618537.

The spelling of 18083604 in words is "eighteen million, eighty-three thousand, six hundred four".