32628972 has 12 divisors (see below), whose sum is σ = 76134296. Its totient is φ = 10876320.

The previous prime is 32628949. The next prime is 32628979. The reversal of 32628972 is 27982623.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 32628972.

It is not an unprimeable number, because it can be changed into a prime (32628979) 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, 1359529 + ... + 1359552.

Almost surely, 2^32628972 is an apocalyptic number.

It is an amenable number.

32628972 is an abundant number, since it is smaller than the sum of its proper divisors (43505324).

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

32628972 is a wasteful number, since it uses less digits than its factorization.

32628972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719088 (or 2719086 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 32628972 is about 5712.1775182499. The cubic root of 32628972 is about 319.5467933355.

The spelling of 32628972 in words is "thirty-two million, six hundred twenty-eight thousand, nine hundred seventy-two".