18086568 has 64 divisors (see below), whose sum is σ = 47044800. Its totient is φ = 5790720.

The previous prime is 18086567. The next prime is 18086573. The reversal of 18086568 is 86568081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18086567) 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 15 ways as a sum of consecutive naturals, for example, 74928 + ... + 75168.

It is an arithmetic number, because the mean of its divisors is an integer number (735075).

Almost surely, 2^18086568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18086568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23522400).

18086568 is an abundant number, since it is smaller than the sum of its proper divisors (28958232).

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

18086568 is a wasteful number, since it uses less digits than its factorization.

18086568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 18086568 is about 4252.8305867975. The cubic root of 18086568 is about 262.4936016581.

The spelling of 18086568 in words is "eighteen million, eighty-six thousand, five hundred sixty-eight".