18065080 has 32 divisors (see below), whose sum is σ = 44342640. Its totient is φ = 6568960.

The previous prime is 18065077. The next prime is 18065081. The reversal of 18065080 is 8056081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18065081) 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, 20089 + ... + 20968.

Almost surely, 2^18065080 is an apocalyptic number.

18065080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18065080 is an abundant number, since it is smaller than the sum of its proper divisors (26277560).

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

18065080 is a wasteful number, since it uses less digits than its factorization.

18065080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41079 (or 41075 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 18065080 is about 4250.3035185737. The cubic root of 18065080 is about 262.3896073987.

It can be divided in two parts, 1806 and 5080, that added together give a palindrome (6886).

The spelling of 18065080 in words is "eighteen million, sixty-five thousand, eighty".