32572992 has 56 divisors (see below), whose sum is σ = 90728800. Its totient is φ = 10285056.

The previous prime is 32572979. The next prime is 32572997. The reversal of 32572992 is 29927523.

It is a self number, because there is not a number n which added to its sum of digits gives 32572992.

It is not an unprimeable number, because it can be changed into a prime (32572997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817 + ... + 8112.

Almost surely, 2^32572992 is an apocalyptic number.

32572992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32572992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45364400).

32572992 is an abundant number, since it is smaller than the sum of its proper divisors (58155808).

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

32572992 is a wasteful number, since it uses less digits than its factorization.

32572992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8963 (or 8953 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 32572992 is about 5707.2753569457. The cubic root of 32572992 is about 319.3639449020.

The spelling of 32572992 in words is "thirty-two million, five hundred seventy-two thousand, nine hundred ninety-two".