325220 has 48 divisors (see below), whose sum is σ = 822528. Its totient is φ = 105600.

The previous prime is 325219. The next prime is 325229. The reversal of 325220 is 22523.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 325195 and 325204.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 325220.

It is not an unprimeable number, because it can be changed into a prime (325229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3170 + ... + 3270.

It is an arithmetic number, because the mean of its divisors is an integer number (17136).

2³²⁵²²⁰ 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 325220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411264).

325220 is an abundant number, since it is smaller than the sum of its proper divisors (497308).

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

325220 is a wasteful number, since it uses less digits than its factorization.

325220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 325220 is about 570.2806326713. The cubic root of 325220 is about 68.7689534520.

Adding to 325220 its reverse (22523), we get a palindrome (347743).

It can be divided in two parts, 325 and 220, that added together give a palindrome (545).

The spelling of 325220 in words is "three hundred twenty-five thousand, two hundred twenty".