18872616 has 32 divisors (see below), whose sum is σ = 53922240. Its totient is φ = 5392128.

The previous prime is 18872603. The next prime is 18872621. The reversal of 18872616 is 61627881.

It is a nude number because it is divisible by every one of its digits.

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, 56001 + ... + 56336.

It is an arithmetic number, because the mean of its divisors is an integer number (1685070).

Almost surely, 2^18872616 is an apocalyptic number.

It is an amenable number.

18872616 is an abundant number, since it is smaller than the sum of its proper divisors (35049624).

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

18872616 is a wasteful number, since it uses less digits than its factorization.

18872616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112353 (or 112349 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 18872616 is about 4344.2624230127. The cubic root of 18872616 is about 266.2424909165.

The spelling of 18872616 in words is "eighteen million, eight hundred seventy-two thousand, six hundred sixteen".