18580084 has 12 divisors (see below), whose sum is σ = 32564644. Its totient is φ = 9275904.

The previous prime is 18580063. The next prime is 18580117. The reversal of 18580084 is 48008581.

It can be written as a sum of positive squares in 2 ways, for example, as 13616100 + 4963984 = 3690^2 + 2228^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 237 + ... + 6100.

Almost surely, 2^18580084 is an apocalyptic number.

It is an amenable number.

18580084 is a deficient number, since it is larger than the sum of its proper divisors (13984560).

18580084 is a wasteful number, since it uses less digits than its factorization.

18580084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074 (or 7072 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 18580084 is about 4310.4621561962. The cubic root of 18580084 is about 264.8597050197.

The spelling of 18580084 in words is "eighteen million, five hundred eighty thousand, eighty-four".