18944884 has 24 divisors (see below), whose sum is σ = 38118528. Its totient is φ = 8070240.

The previous prime is 18944867. The next prime is 18944909. The reversal of 18944884 is 48844981.

It is a congruent number.

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, 2889 + ... + 6799.

It is an arithmetic number, because the mean of its divisors is an integer number (1588272).

Almost surely, 2^18944884 is an apocalyptic number.

18944884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18944884 is an abundant number, since it is smaller than the sum of its proper divisors (19173644).

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

18944884 is a wasteful number, since it uses less digits than its factorization.

18944884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095 (or 4093 counting only the distinct ones).

The product of its digits is 294912, while the sum is 46.

The square root of 18944884 is about 4352.5721131303. The cubic root of 18944884 is about 266.5818945820.

The spelling of 18944884 in words is "eighteen million, nine hundred forty-four thousand, eight hundred eighty-four".