It is a nialpdrome in base 14.
It is a congruent number.
220048 is an apocalyptic number.
20048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20048 is a wasteful number, since it uses less digits than its factorization.
20048 is an evil number, because the sum of its binary digits is even.
The square root of 20048 is about 141.5909601634. The cubic root of 20048 is about 27.1658741577.
The spelling of 20048 in words is "twenty thousand, forty-eight".