325523840 has 64 divisors (see below), whose sum is σ = 805086000. Its totient is φ = 125712384.

The previous prime is 325523831. The next prime is 325523867. The reversal of 325523840 is 48325523.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 325523797 and 325523806.

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, 9791 + ... + 27329.

Almost surely, 2^325523840 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 325523840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402543000).

325523840 is an abundant number, since it is smaller than the sum of its proper divisors (479562160).

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

325523840 is a wasteful number, since it uses less digits than its factorization.

325523840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17587 (or 17575 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 325523840 is about 18042.2792351743. The cubic root of 325523840 is about 687.9036281094.

The spelling of 325523840 in words is "three hundred twenty-five million, five hundred twenty-three thousand, eight hundred forty".