18875118 has 16 divisors (see below), whose sum is σ = 37801296. Its totient is φ = 6283200.

The previous prime is 18875107. The next prime is 18875119. The reversal of 18875118 is 81157881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18875119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4068 + ... + 7368.

It is an arithmetic number, because the mean of its divisors is an integer number (2362581).

Almost surely, 2^18875118 is an apocalyptic number.

18875118 is an abundant number, since it is smaller than the sum of its proper divisors (18926178).

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

18875118 is a wasteful number, since it uses less digits than its factorization.

18875118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4259.

The product of its digits is 17920, while the sum is 39.

The square root of 18875118 is about 4344.5503794984. The cubic root of 18875118 is about 266.2542559217.

The spelling of 18875118 in words is "eighteen million, eight hundred seventy-five thousand, one hundred eighteen".