18330856 has 16 divisors (see below), whose sum is σ = 34416900. Its totient is φ = 9153024.

The previous prime is 18330803. The next prime is 18330859. The reversal of 18330856 is 65803381.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16728100 + 1602756 = 4090^2 + 1266^2 .

It is not an unprimeable number, because it can be changed into a prime (18330859) 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 3 ways as a sum of consecutive naturals, for example, 8760 + ... + 10648.

Almost surely, 2^18330856 is an apocalyptic number.

It is an amenable number.

18330856 is a deficient number, since it is larger than the sum of its proper divisors (16086044).

18330856 is a wasteful number, since it uses less digits than its factorization.

18330856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108 (or 3104 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 18330856 is about 4281.4548929073. The cubic root of 18330856 is about 263.6701190375.

The spelling of 18330856 in words is "eighteen million, three hundred thirty thousand, eight hundred fifty-six".