18580080 has 40 divisors (see below), whose sum is σ = 57598992. Its totient is φ = 4954624.

The previous prime is 18580063. The next prime is 18580117. The reversal of 18580080 is 8008581.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38469 + ... + 38948.

Almost surely, 2^18580080 is an apocalyptic number.

18580080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18580080 is an abundant number, since it is smaller than the sum of its proper divisors (39018912).

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

18580080 is a wasteful number, since it uses less digits than its factorization.

18580080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77433 (or 77427 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 18580080 is about 4310.4616922089. The cubic root of 18580080 is about 264.8596860130.

The spelling of 18580080 in words is "eighteen million, five hundred eighty thousand, eighty".