18944 is nontrivially palindromic in base 3.
18944 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
218944 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 18944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19437).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18944 is an frugal number, since it uses more digits than its factorization.
18944 is an odious number, because the sum of its binary digits is odd.
The square root of 18944 is about 137.6372042727. The cubic root of 18944 is about 26.6577748132.
The spelling of 18944 in words is "eighteen thousand, nine hundred forty-four".