32645680 has 20 divisors (see below), whose sum is σ = 75901392. Its totient is φ = 13058240.

The previous prime is 32645659. The next prime is 32645687. The reversal of 32645680 is 8654623.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (32645687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203956 + ... + 204115.

Almost surely, 2^32645680 is an apocalyptic number.

It is an amenable number.

32645680 is an abundant number, since it is smaller than the sum of its proper divisors (43255712).

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

32645680 is a wasteful number, since it uses less digits than its factorization.

32645680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408084 (or 408078 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 32645680 is about 5713.6398206397. The cubic root of 32645680 is about 319.6013264335.

The spelling of 32645680 in words is "thirty-two million, six hundred forty-five thousand, six hundred eighty".