It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is an Ulam number.
It is a congruent number.
3960 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
23960 is an apocalyptic number.
3960 is a gapful number since it is divisible by the number (30) 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 3960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3960 is a wasteful number, since it uses less digits than its factorization.
3960 is an evil number, because the sum of its binary digits is even.
The square root of 3960 is about 62.9285308902. The cubic root of 3960 is about 15.8209197869.
The spelling of 3960 in words is "three thousand, nine hundred sixty".