18104618 has 24 divisors (see below), whose sum is σ = 32451012. Its totient is φ = 7547904.

The previous prime is 18104599. The next prime is 18104683. The reversal of 18104618 is 81640181.

It can be written as a sum of positive squares in 2 ways, for example, as 17698849 + 405769 = 4207^2 + 637^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1130 + ... + 6122.

Almost surely, 2^18104618 is an apocalyptic number.

18104618 is a deficient number, since it is larger than the sum of its proper divisors (14346394).

18104618 is a wasteful number, since it uses less digits than its factorization.

18104618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046 (or 5039 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 18104618 is about 4254.9521736443. The cubic root of 18104618 is about 262.5808935873.

Adding to 18104618 its reverse (81640181), we get a palindrome (99744799).

The spelling of 18104618 in words is "eighteen million, one hundred four thousand, six hundred eighteen".