32445252 has 72 divisors (see below), whose sum is σ = 97866720. Its totient is φ = 9268560.

The previous prime is 32445247. The next prime is 32445253. The reversal of 32445252 is 25254423.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (32445253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2227 + ... + 8357.

It is an arithmetic number, because the mean of its divisors is an integer number (1359260).

Almost surely, 2^32445252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32445252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48933360).

32445252 is an abundant number, since it is smaller than the sum of its proper divisors (65421468).

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

32445252 is a wasteful number, since it uses less digits than its factorization.

32445252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6158 (or 6143 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 32445252 is about 5696.0733843587. The cubic root of 32445252 is about 318.9459196917.

Adding to 32445252 its reverse (25254423), we get a palindrome (57699675).

The spelling of 32445252 in words is "thirty-two million, four hundred forty-five thousand, two hundred fifty-two".