18345074 has 32 divisors (see below), whose sum is σ = 32078592. Its totient is φ = 7776000.

The previous prime is 18345071. The next prime is 18345083. The reversal of 18345074 is 47054381.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 18345074.

It is not an unprimeable number, because it can be changed into a prime (18345071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67559 + ... + 67829.

It is an arithmetic number, because the mean of its divisors is an integer number (1002456).

Almost surely, 2^18345074 is an apocalyptic number.

18345074 is a deficient number, since it is larger than the sum of its proper divisors (13733518).

18345074 is a wasteful number, since it uses less digits than its factorization.

18345074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 18345074 is about 4283.1149879498. The cubic root of 18345074 is about 263.7382717545.

The spelling of 18345074 in words is "eighteen million, three hundred forty-five thousand, seventy-four".