18842874 has 16 divisors (see below), whose sum is σ = 37735680. Its totient is φ = 6272640.

The previous prime is 18842869. The next prime is 18842891. The reversal of 18842874 is 47824881.

It is a Curzon number.

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, 4362 + ... + 7530.

It is an arithmetic number, because the mean of its divisors is an integer number (2358480).

Almost surely, 2^18842874 is an apocalyptic number.

18842874 is an abundant number, since it is smaller than the sum of its proper divisors (18892806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18842874 is a wasteful number, since it uses less digits than its factorization.

18842874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165.

The product of its digits is 114688, while the sum is 42.

The square root of 18842874 is about 4340.8379375416. The cubic root of 18842874 is about 266.1025571710.

The spelling of 18842874 in words is "eighteen million, eight hundred forty-two thousand, eight hundred seventy-four".