325160640 has 252 divisors, whose sum is σ = 1288334736. Its totient is φ = 73737216.

The previous prime is 325160621. The next prime is 325160651. The reversal of 325160640 is 46061523.

325160640 is a `hidden beast` number, since 3 + 2 + 5 + 16 + 0 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (252).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2560257 + ... + 2560383.

Almost surely, 2^325160640 is an apocalyptic number.

325160640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325160640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644167368).

325160640 is an abundant number, since it is smaller than the sum of its proper divisors (963174096).

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

325160640 is a wasteful number, since it uses less digits than its factorization.

325160640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 325160640 is about 18032.2111788876. The cubic root of 325160640 is about 687.6476923468.

The spelling of 325160640 in words is "three hundred twenty-five million, one hundred sixty thousand, six hundred forty".