325205440 has 112 divisors (see below), whose sum is σ = 906865344. Its totient is φ = 108748800.

The previous prime is 325205429. The next prime is 325205443. The reversal of 325205440 is 44502523.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325205443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90070 + ... + 93610.

It is an arithmetic number, because the mean of its divisors is an integer number (8097012).

Almost surely, 2^325205440 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 325205440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453432672).

325205440 is an abundant number, since it is smaller than the sum of its proper divisors (581659904).

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

325205440 is a wasteful number, since it uses less digits than its factorization.

325205440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606 (or 3596 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 325205440 is about 18033.4533575796. The cubic root of 325205440 is about 687.6792718167.

Adding to 325205440 its reverse (44502523), we get a palindrome (369707963).

The spelling of 325205440 in words is "three hundred twenty-five million, two hundred five thousand, four hundred forty".