325530440 has 32 divisors (see below), whose sum is σ = 752242680. Its totient is φ = 126692352.

The previous prime is 325530437. The next prime is 325530451. The reversal of 325530440 is 44035523.

It can be written as a sum of positive squares in 4 ways, for example, as 246427204 + 79103236 = 15698^2 + 8894^2 .

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, 108497 + ... + 111456.

Almost surely, 2^325530440 is an apocalyptic number.

It is an amenable number.

325530440 is an abundant number, since it is smaller than the sum of its proper divisors (426712240).

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

325530440 is a wasteful number, since it uses less digits than its factorization.

325530440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220001 (or 219997 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 325530440 is about 18042.4621379678. The cubic root of 325530440 is about 687.9082771629.

Adding to 325530440 its reverse (44035523), we get a palindrome (369565963).

The spelling of 325530440 in words is "three hundred twenty-five million, five hundred thirty thousand, four hundred forty".