18875044 has 12 divisors (see below), whose sum is σ = 33591600. Its totient is φ = 9277448.

The previous prime is 18875041. The next prime is 18875053. The reversal of 18875044 is 44057881.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 18874994 and 18875012.

It is not an unprimeable number, because it can be changed into a prime (18875041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39754 + ... + 40225.

It is an arithmetic number, because the mean of its divisors is an integer number (2799300).

Almost surely, 2^18875044 is an apocalyptic number.

It is an amenable number.

18875044 is a deficient number, since it is larger than the sum of its proper divisors (14716556).

18875044 is a wasteful number, since it uses less digits than its factorization.

18875044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80042 (or 80040 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 18875044 is about 4344.5418630737. The cubic root of 18875044 is about 266.2539079709.

The spelling of 18875044 in words is "eighteen million, eight hundred seventy-five thousand, forty-four".