325820 has 24 divisors (see below), whose sum is σ = 746928. Its totient is φ = 118400.

The previous prime is 325813. The next prime is 325849. The reversal of 325820 is 28523.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 325792 and 325801.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 325820.

It is an unprimeable number.

325820 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 521 + ... + 960.

It is an arithmetic number, because the mean of its divisors is an integer number (31122).

2³²⁵⁸²⁰ is an apocalyptic number.

It is an amenable number.

325820 is an abundant number, since it is smaller than the sum of its proper divisors (421108).

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

325820 is a wasteful number, since it uses less digits than its factorization.

325820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501 (or 1499 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 325820 is about 570.8064470554. The cubic root of 325820 is about 68.8112181996.

The spelling of 325820 in words is "three hundred twenty-five thousand, eight hundred twenty".