325162728 has 128 divisors (see below), whose sum is σ = 995328000. Its totient is φ = 97536960.

The previous prime is 325162711. The next prime is 325162763. The reversal of 325162728 is 827261523.

325162728 is a `hidden beast` number, since 3 + 2 + 5 + 1 + 627 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 325162692 and 325162701.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253593 + ... + 254871.

It is an arithmetic number, because the mean of its divisors is an integer number (7776000).

Almost surely, 2^325162728 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 325162728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497664000).

325162728 is an abundant number, since it is smaller than the sum of its proper divisors (670165272).

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

325162728 is a wasteful number, since it uses less digits than its factorization.

325162728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1402 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 325162728 is about 18032.2690751885. The cubic root of 325162728 is about 687.6491642401.

The spelling of 325162728 in words is "three hundred twenty-five million, one hundred sixty-two thousand, seven hundred twenty-eight".