325451728 has 60 divisors (see below), whose sum is σ = 735807072. Its totient is φ = 139043520.

The previous prime is 325451719. The next prime is 325451807. The reversal of 325451728 is 827154523.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447301 + ... + 448027.

Almost surely, 2^325451728 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 325451728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367903536).

325451728 is an abundant number, since it is smaller than the sum of its proper divisors (410355344).

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

325451728 is a wasteful number, since it uses less digits than its factorization.

325451728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1307 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 325451728 is about 18040.2807073504. The cubic root of 325451728 is about 687.8528281742.

The spelling of 325451728 in words is "three hundred twenty-five million, four hundred fifty-one thousand, seven hundred twenty-eight".