18354874 has 16 divisors (see below), whose sum is σ = 30242880. Its totient is φ = 8316000.

The previous prime is 18354859. The next prime is 18354881. The reversal of 18354874 is 47845381.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9627 + ... + 11374.

It is an arithmetic number, because the mean of its divisors is an integer number (1890180).

Almost surely, 2^18354874 is an apocalyptic number.

18354874 is a deficient number, since it is larger than the sum of its proper divisors (11888006).

18354874 is a wasteful number, since it uses less digits than its factorization.

18354874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21045.

The product of its digits is 107520, while the sum is 40.

The square root of 18354874 is about 4284.2588623938. The cubic root of 18354874 is about 263.7852266838.

The spelling of 18354874 in words is "eighteen million, three hundred fifty-four thousand, eight hundred seventy-four".