325546820 has 24 divisors (see below), whose sum is σ = 684039384. Its totient is φ = 130144256.

The previous prime is 325546811. The next prime is 325546843. The reversal of 325546820 is 28645523.

It can be written as a sum of positive squares in 4 ways, for example, as 2050624 + 323496196 = 1432^2 + 17986^2 .

It is a super-2 number, since 2×325546820² = 211961464024224800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43172 + ... + 50148.

It is an arithmetic number, because the mean of its divisors is an integer number (28501641).

Almost surely, 2^325546820 is an apocalyptic number.

It is an amenable number.

325546820 is an abundant number, since it is smaller than the sum of its proper divisors (358492564).

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

325546820 is a wasteful number, since it uses less digits than its factorization.

325546820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9319 (or 9317 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 325546820 is about 18042.9160614353. The cubic root of 325546820 is about 687.9198149970.

The spelling of 325546820 in words is "three hundred twenty-five million, five hundred forty-six thousand, eight hundred twenty".