13668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a plaindrome in base 10.
13668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
213668 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 13668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17136).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13668 is a wasteful number, since it uses less digits than its factorization.
13668 is an odious number, because the sum of its binary digits is odd.
The square root of 13668 is about 116.9102219654. The cubic root of 13668 is about 23.9093804906.
The spelling of 13668 in words is "thirteen thousand, six hundred sixty-eight".