18844944 has 40 divisors (see below), whose sum is σ = 48851040. Its totient is φ = 6259968.

The previous prime is 18844939. The next prime is 18844957. The reversal of 18844944 is 44944881.

It is a junction number, because it is equal to n+sod(n) for n = 18844896 and 18844905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19644 + ... + 20580.

It is an arithmetic number, because the mean of its divisors is an integer number (1221276).

Almost surely, 2^18844944 is an apocalyptic number.

It is an amenable number.

18844944 is an abundant number, since it is smaller than the sum of its proper divisors (30006096).

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

18844944 is a wasteful number, since it uses less digits than its factorization.

18844944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1361 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 18844944 is about 4341.0763642212. The cubic root of 18844944 is about 266.1123011220.

The spelling of 18844944 in words is "eighteen million, eight hundred forty-four thousand, nine hundred forty-four".