325720 has 32 divisors (see below), whose sum is σ = 777600. Its totient is φ = 122368.

The previous prime is 325709. The next prime is 325723. The reversal of 325720 is 27523.

It is a happy number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441 + ... + 919.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2³²⁵⁷²⁰ 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 325720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388800).

325720 is an abundant number, since it is smaller than the sum of its proper divisors (451880).

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

325720 is a wasteful number, since it uses less digits than its factorization.

325720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 325720 is about 570.7188449666. The cubic root of 325720 is about 68.8041776803.

The spelling of 325720 in words is "three hundred twenty-five thousand, seven hundred twenty".