It is a tau number, because it is divible by the number of its divisors (48).
13920 is an undulating number in base 12.
It is a self number, because there is not a number n which added to its sum of digits gives 13920.
It is a congruent number.
213920 is an apocalyptic number.
13920 is a gapful number since it is divisible by the number (10) 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 13920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13920 is a wasteful number, since it uses less digits than its factorization.
13920 is an evil number, because the sum of its binary digits is even.
The square root of 13920 is about 117.9830496300. The cubic root of 13920 is about 24.0554274486.
The spelling of 13920 in words is "thirteen thousand, nine hundred twenty".