32572872 has 24 divisors (see below), whose sum is σ = 88218390. Its totient is φ = 10857600.

The previous prime is 32572871. The next prime is 32572879. The reversal of 32572872 is 27827523.

It is a happy number.

32572872 is a `hidden beast` number, since 3 + 2 + 572 + 87 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31877316 + 695556 = 5646^2 + 834^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32572871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226129 + ... + 226272.

Almost surely, 2^32572872 is an apocalyptic number.

It is an amenable number.

32572872 is an abundant number, since it is smaller than the sum of its proper divisors (55645518).

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

32572872 is a wasteful number, since it uses less digits than its factorization.

32572872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452413 (or 452406 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 32572872 is about 5707.2648440387. The cubic root of 32572872 is about 319.3635527190.

The spelling of 32572872 in words is "thirty-two million, five hundred seventy-two thousand, eight hundred seventy-two".