325712720 has 40 divisors (see below), whose sum is σ = 760029480. Its totient is φ = 129812480.

The previous prime is 325712701. The next prime is 325712731. The reversal of 325712720 is 27217523.

It can be written as a sum of positive squares in 4 ways, for example, as 14684224 + 311028496 = 3832^2 + 17636^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 15236 + ... + 29724.

It is an arithmetic number, because the mean of its divisors is an integer number (19000737).

Almost surely, 2^325712720 is an apocalyptic number.

It is an amenable number.

325712720 is an abundant number, since it is smaller than the sum of its proper divisors (434316760).

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

325712720 is a wasteful number, since it uses less digits than its factorization.

325712720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14783 (or 14777 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 325712720 is about 18047.5128480353. The cubic root of 325712720 is about 688.0366507427.

The spelling of 325712720 in words is "three hundred twenty-five million, seven hundred twelve thousand, seven hundred twenty".