18104908 has 6 divisors (see below), whose sum is σ = 31683596. Its totient is φ = 9052452.

The previous prime is 18104893. The next prime is 18104909. The reversal of 18104908 is 80940181.

It is a self number, because there is not a number n which added to its sum of digits gives 18104908.

It is not an unprimeable number, because it can be changed into a prime (18104909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2263110 + ... + 2263117.

Almost surely, 2^18104908 is an apocalyptic number.

It is an amenable number.

18104908 is a deficient number, since it is larger than the sum of its proper divisors (13578688).

18104908 is a wasteful number, since it uses less digits than its factorization.

18104908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526231 (or 4526229 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 18104908 is about 4254.9862514466. The cubic root of 18104908 is about 262.5822955878.

The spelling of 18104908 in words is "eighteen million, one hundred four thousand, nine hundred eight".