325280 has 48 divisors (see below), whose sum is σ = 816480. Its totient is φ = 122112.

The previous prime is 325271. The next prime is 325301. The reversal of 325280 is 82523.

325280 = T₁₁ + T₁₂ + ... + T₁₂₄.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 325280.

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, 2987 + ... + 3093.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2³²⁵²⁸⁰ 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 325280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408240).

325280 is an abundant number, since it is smaller than the sum of its proper divisors (491200).

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

325280 is a wasteful number, since it uses less digits than its factorization.

325280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 133 counting only the distinct ones).

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

The square root of 325280 is about 570.3332359244. Note that the first 3 decimals coincide. The cubic root of 325280 is about 68.7731822648.

The spelling of 325280 in words is "three hundred twenty-five thousand, two hundred eighty".