325820672 has 36 divisors (see below), whose sum is σ = 657123516. Its totient is φ = 161218560.

The previous prime is 325820669. The next prime is 325820701. The reversal of 325820672 is 276028523.

It can be written as a sum of positive squares in 2 ways, for example, as 91853056 + 233967616 = 9584^2 + 15296^2 .

It is a super-2 number, since 2×325820672² = 212318220605063168, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18272 + ... + 31392.

It is an arithmetic number, because the mean of its divisors is an integer number (18253431).

Almost surely, 2^325820672 is an apocalyptic number.

325820672 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 325820672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328561758).

325820672 is an abundant number, since it is smaller than the sum of its proper divisors (331302844).

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

325820672 is an equidigital number, since it uses as much as digits as its factorization.

325820672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13234 (or 13220 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 325820672 is about 18050.5033724824. The cubic root of 325820672 is about 688.1126550697.

The spelling of 325820672 in words is "three hundred twenty-five million, eight hundred twenty thousand, six hundred seventy-two".