18313056 has 36 divisors (see below), whose sum is σ = 52078572. Its totient is φ = 6104256.

The previous prime is 18313027. The next prime is 18313067. The reversal of 18313056 is 65031381.

It is a tau number, because it is divible by the number of its divisors (36).

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 5 ways as a sum of consecutive naturals, for example, 31506 + ... + 32081.

It is an arithmetic number, because the mean of its divisors is an integer number (1446627).

Almost surely, 2^18313056 is an apocalyptic number.

18313056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18313056 is an abundant number, since it is smaller than the sum of its proper divisors (33765516).

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

18313056 is a wasteful number, since it uses less digits than its factorization.

18313056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63603 (or 63592 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 18313056 is about 4279.3756553965. The cubic root of 18313056 is about 263.5847466272.

The spelling of 18313056 in words is "eighteen million, three hundred thirteen thousand, fifty-six".