18076680 has 96 divisors (see below), whose sum is σ = 59319000. Its totient is φ = 4773888.

The previous prime is 18076633. The next prime is 18076693. The reversal of 18076680 is 8667081.

It can be written as a sum of positive squares in 4 ways, for example, as 8749764 + 9326916 = 2958^2 + 3054^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53472 + ... + 53808.

Almost surely, 2^18076680 is an apocalyptic number.

18076680 is a gapful number since it is divisible by the number (10) 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 18076680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29659500).

18076680 is an abundant number, since it is smaller than the sum of its proper divisors (41242320).

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

18076680 is a wasteful number, since it uses less digits than its factorization.

18076680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 18076680 is about 4251.6679080097. The cubic root of 18076680 is about 262.4457574997.

The spelling of 18076680 in words is "eighteen million, seventy-six thousand, six hundred eighty".