325310640 has 160 divisors (see below), whose sum is σ = 1083787776. Its totient is φ = 80424960.

The previous prime is 325310633. The next prime is 325310651. The reversal of 325310640 is 46013523.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 325310640.

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, 289119 + ... + 290241.

Almost surely, 2^325310640 is an apocalyptic number.

325310640 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 325310640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541893888).

325310640 is an abundant number, since it is smaller than the sum of its proper divisors (758477136).

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

325310640 is a wasteful number, since it uses less digits than its factorization.

325310640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227 (or 1221 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 325310640 is about 18036.3699230194. The cubic root of 325310640 is about 687.7534157794.

The spelling of 325310640 in words is "three hundred twenty-five million, three hundred ten thousand, six hundred forty".