18086976 has 84 divisors (see below), whose sum is σ = 53809392. Its totient is φ = 6023808.

The previous prime is 18086941. The next prime is 18086983. The reversal of 18086976 is 67968081.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14971 + ... + 16133.

It is an arithmetic number, because the mean of its divisors is an integer number (640588).

Almost surely, 2^18086976 is an apocalyptic number.

18086976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18086976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26904696).

18086976 is an abundant number, since it is smaller than the sum of its proper divisors (35722416).

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

18086976 is an equidigital number, since it uses as much as digits as its factorization.

18086976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 18086976 is about 4252.8785545792. The cubic root of 18086976 is about 262.4955754356.

The spelling of 18086976 in words is "eighteen million, eighty-six thousand, nine hundred seventy-six".