32056640 has 112 divisors (see below), whose sum is σ = 95243904. Its totient is φ = 9984000.

The previous prime is 32056637. The next prime is 32056649. The reversal of 32056640 is 4665023.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32056649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23990 + ... + 25290.

It is an arithmetic number, because the mean of its divisors is an integer number (850392).

Almost surely, 2^32056640 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 32056640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47621952).

32056640 is an abundant number, since it is smaller than the sum of its proper divisors (63187264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32056640 is a wasteful number, since it uses less digits than its factorization.

32056640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 32056640 is about 5661.8583521667. The cubic root of 32056640 is about 317.6674133115.

The spelling of 32056640 in words is "thirty-two million, fifty-six thousand, six hundred forty".