18418675 has 12 divisors (see below), whose sum is σ = 24915816. Its totient is φ = 13395200.

The previous prime is 18418669. The next prime is 18418693. The reversal of 18418675 is 57681481.

It is not a de Polignac number, because 18418675 - 2⁵ = 18418643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 33214 + ... + 33763.

It is an arithmetic number, because the mean of its divisors is an integer number (2076318).

Almost surely, 2^18418675 is an apocalyptic number.

18418675 is a deficient number, since it is larger than the sum of its proper divisors (6497141).

18418675 is a wasteful number, since it uses less digits than its factorization.

18418675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66998 (or 66993 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 18418675 is about 4291.6983817598. The cubic root of 18418675 is about 264.0905097910.

The spelling of 18418675 in words is "eighteen million, four hundred eighteen thousand, six hundred seventy-five".