18876224 has 28 divisors (see below), whose sum is σ = 38100000. Its totient is φ = 9276288.

The previous prime is 18876217. The next prime is 18876227. The reversal of 18876224 is 42267881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18876227) 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, 1277 + ... + 6275.

Almost surely, 2^18876224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18876224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19050000).

18876224 is an abundant number, since it is smaller than the sum of its proper divisors (19223776).

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

18876224 is an equidigital number, since it uses as much as digits as its factorization.

18876224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070 (or 5060 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 18876224 is about 4344.6776635327. The cubic root of 18876224 is about 266.2594562681.

It can be divided in two parts, 18876 and 224, that multiplied together give a palindrome (4228224).

The spelling of 18876224 in words is "eighteen million, eight hundred seventy-six thousand, two hundred twenty-four".