18528974 has 8 divisors (see below), whose sum is σ = 27883200. Its totient is φ = 9234576.

The previous prime is 18528943. The next prime is 18529013. The reversal of 18528974 is 47982581.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14174 + ... + 15425.

It is an arithmetic number, because the mean of its divisors is an integer number (3485400).

Almost surely, 2^18528974 is an apocalyptic number.

18528974 is a deficient number, since it is larger than the sum of its proper divisors (9354226).

18528974 is a wasteful number, since it uses less digits than its factorization.

18528974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29914.

The product of its digits is 161280, while the sum is 44.

The square root of 18528974 is about 4304.5294748671. The cubic root of 18528974 is about 264.6166237539.

The spelling of 18528974 in words is "eighteen million, five hundred twenty-eight thousand, nine hundred seventy-four".