43680 divided by its sum of digits (21) gives a triangular number (2080 = T64).
43680 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (96).
43680 is strictly pandigital in base 6.
It is a nialpdrome in base 4 and base 16.
It is a zygodrome in base 4.
It is a congruent number.
It is an unprimeable number.
It is the 63-rd tetrahedral number.
243680 is an apocalyptic number.
43680 is a gapful number since it is divisible by the number (40) 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 43680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
43680 is a wasteful number, since it uses less digits than its factorization.
43680 is an evil number, because the sum of its binary digits is even.
The square root of 43680 is about 208.9976076418. The cubic root of 43680 is about 35.2176908320.
The spelling of 43680 in words is "forty-three thousand, six hundred eighty".