18304484 has 12 divisors (see below), whose sum is σ = 34945008. Its totient is φ = 8320200.

The previous prime is 18304483. The next prime is 18304511. The reversal of 18304484 is 48440381.

It is a self number, because there is not a number n which added to its sum of digits gives 18304484.

It is not an unprimeable number, because it can be changed into a prime (18304483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207962 + ... + 208049.

It is an arithmetic number, because the mean of its divisors is an integer number (2912084).

Almost surely, 2^18304484 is an apocalyptic number.

It is an amenable number.

18304484 is a deficient number, since it is larger than the sum of its proper divisors (16640524).

18304484 is a wasteful number, since it uses less digits than its factorization.

18304484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416026 (or 416024 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 18304484 is about 4278.3739901977. The cubic root of 18304484 is about 263.5436138406.

The spelling of 18304484 in words is "eighteen million, three hundred four thousand, four hundred eighty-four".