18336874 has 8 divisors (see below), whose sum is σ = 28453860. Its totient is φ = 8852256.

The previous prime is 18336869. The next prime is 18336907. The reversal of 18336874 is 47863381.

It can be written as a sum of positive squares in 2 ways, for example, as 17514225 + 822649 = 4185^2 + 907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 158019 + ... + 158134.

Almost surely, 2^18336874 is an apocalyptic number.

18336874 is a deficient number, since it is larger than the sum of its proper divisors (10116986).

18336874 is a wasteful number, since it uses less digits than its factorization.

18336874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316184.

The product of its digits is 96768, while the sum is 40.

The square root of 18336874 is about 4282.1576337169. The cubic root of 18336874 is about 263.6989700845.

The spelling of 18336874 in words is "eighteen million, three hundred thirty-six thousand, eight hundred seventy-four".