32256172 has 12 divisors (see below), whose sum is σ = 60790576. Its totient is φ = 14887440.

The previous prime is 32256137. The next prime is 32256173. The reversal of 32256172 is 27165223.

It is a self number, because there is not a number n which added to its sum of digits gives 32256172.

It is not an unprimeable number, because it can be changed into a prime (32256173) 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, 310104 + ... + 310207.

Almost surely, 2^32256172 is an apocalyptic number.

It is an amenable number.

32256172 is a deficient number, since it is larger than the sum of its proper divisors (28534404).

32256172 is a wasteful number, since it uses less digits than its factorization.

32256172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620328 (or 620326 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 32256172 is about 5679.4517341025. The cubic root of 32256172 is about 318.3251424358.

The spelling of 32256172 in words is "thirty-two million, two hundred fifty-six thousand, one hundred seventy-two".