18676944 has 120 divisors (see below), whose sum is σ = 61475232. Its totient is φ = 5218560.

The previous prime is 18676883. The next prime is 18676951. The reversal of 18676944 is 44967681.

It is a self number, because there is not a number n which added to its sum of digits gives 18676944.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20139 + ... + 21045.

Almost surely, 2^18676944 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 18676944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30737616).

18676944 is an abundant number, since it is smaller than the sum of its proper divisors (42798288).

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

18676944 is a wasteful number, since it uses less digits than its factorization.

18676944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 936 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 18676944 is about 4321.6830054968. The cubic root of 18676944 is about 265.3191550437.

The spelling of 18676944 in words is "eighteen million, six hundred seventy-six thousand, nine hundred forty-four".