It is a tau number, because it is divible by the number of its divisors (64).
It is a nialpdrome in base 2 and base 8.
It is a zygodrome in base 2.
It is a congruent number.
32640 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
In principle, a polygon with 32640 sides can be constructed with ruler and compass.
232640 is an apocalyptic number.
32640 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 32640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
32640 is a wasteful number, since it uses less digits than its factorization.
32640 is an evil number, because the sum of its binary digits is even.
The square root of 32640 is about 180.6654366502. The cubic root of 32640 is about 31.9582789618.
The spelling of 32640 in words is "thirty-two thousand, six hundred forty".