325131972 has 96 divisors (see below), whose sum is σ = 850859520. Its totient is φ = 95800320.

The previous prime is 325131967. The next prime is 325131973. The reversal of 325131972 is 279131523.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (325131973) 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 31 ways as a sum of consecutive naturals, for example, 857679 + ... + 858057.

It is an arithmetic number, because the mean of its divisors is an integer number (8863120).

Almost surely, 2^325131972 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 325131972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425429760).

325131972 is an abundant number, since it is smaller than the sum of its proper divisors (525727548).

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

325131972 is a wasteful number, since it uses less digits than its factorization.

325131972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 559 counting only the distinct ones).

The product of its digits is 11340, while the sum is 33.

The square root of 325131972 is about 18031.4162505334. The cubic root of 325131972 is about 687.6274827837.

The spelling of 325131972 in words is "three hundred twenty-five million, one hundred thirty-one thousand, nine hundred seventy-two".