18496856 has 32 divisors (see below), whose sum is σ = 39774240. Its totient is φ = 7899648.

The previous prime is 18496831. The next prime is 18496859. The reversal of 18496856 is 65869481.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18496856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18496859) 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, 30896 + ... + 31488.

It is an arithmetic number, because the mean of its divisors is an integer number (1242945).

Almost surely, 2^18496856 is an apocalyptic number.

It is an amenable number.

18496856 is an abundant number, since it is smaller than the sum of its proper divisors (21277384).

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

18496856 is a wasteful number, since it uses less digits than its factorization.

18496856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1159 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 18496856 is about 4300.7971354157. The cubic root of 18496856 is about 264.4636404293.

The spelling of 18496856 in words is "eighteen million, four hundred ninety-six thousand, eight hundred fifty-six".