18083680 has 24 divisors (see below), whose sum is σ = 42723072. Its totient is φ = 7233408.

The previous prime is 18083671. The next prime is 18083701. The reversal of 18083680 is 8638081.

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 3 ways as a sum of consecutive naturals, for example, 56352 + ... + 56671.

It is an arithmetic number, because the mean of its divisors is an integer number (1780128).

Almost surely, 2^18083680 is an apocalyptic number.

18083680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18083680 is an abundant number, since it is smaller than the sum of its proper divisors (24639392).

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

18083680 is a wasteful number, since it uses less digits than its factorization.

18083680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113038 (or 113030 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 18083680 is about 4252.4910346760. The cubic root of 18083680 is about 262.4796295606.

The spelling of 18083680 in words is "eighteen million, eighty-three thousand, six hundred eighty".