18706056 has 32 divisors (see below), whose sum is σ = 47088000. Its totient is φ = 6192320.

The previous prime is 18706049. The next prime is 18706057. The reversal of 18706056 is 65060781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18706057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961 + ... + 6191.

It is an arithmetic number, because the mean of its divisors is an integer number (1471500).

Almost surely, 2^18706056 is an apocalyptic number.

It is an amenable number.

18706056 is an abundant number, since it is smaller than the sum of its proper divisors (28381944).

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

18706056 is a wasteful number, since it uses less digits than its factorization.

18706056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5389 (or 5385 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 18706056 is about 4325.0498263026. The cubic root of 18706056 is about 265.4569356421.

The spelling of 18706056 in words is "eighteen million, seven hundred six thousand, fifty-six".