18307084 has 6 divisors (see below), whose sum is σ = 32037404. Its totient is φ = 9153540.

The previous prime is 18307073. The next prime is 18307099. The reversal of 18307084 is 48070381.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2288382 + ... + 2288389.

Almost surely, 2^18307084 is an apocalyptic number.

It is an amenable number.

18307084 is a deficient number, since it is larger than the sum of its proper divisors (13730320).

18307084 is a wasteful number, since it uses less digits than its factorization.

18307084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576775 (or 4576773 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 18307084 is about 4278.6778331630. The cubic root of 18307084 is about 263.5560913107.

The spelling of 18307084 in words is "eighteen million, three hundred seven thousand, eighty-four".