18316475 has 12 divisors (see below), whose sum is σ = 23908440. Its totient is φ = 13881600.

The previous prime is 18316471. The next prime is 18316483. The reversal of 18316475 is 57461381.

It is not a de Polignac number, because 18316475 - 2² = 18316471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18316471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18806 + ... + 19755.

It is an arithmetic number, because the mean of its divisors is an integer number (1992370).

Almost surely, 2^18316475 is an apocalyptic number.

18316475 is a deficient number, since it is larger than the sum of its proper divisors (5591965).

18316475 is a wasteful number, since it uses less digits than its factorization.

18316475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38590 (or 38585 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 18316475 is about 4279.7751109141. The cubic root of 18316475 is about 263.6011491358.

The spelling of 18316475 in words is "eighteen million, three hundred sixteen thousand, four hundred seventy-five".