325282640 has 20 divisors (see below), whose sum is σ = 756282324. Its totient is φ = 130113024.

The previous prime is 325282627. The next prime is 325282649. The reversal of 325282640 is 46282523.

It can be written as a sum of positive squares in 2 ways, for example, as 215619856 + 109662784 = 14684^2 + 10472^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 325282597 and 325282606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325282649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032937 + ... + 2033096.

Almost surely, 2^325282640 is an apocalyptic number.

It is an amenable number.

325282640 is an abundant number, since it is smaller than the sum of its proper divisors (430999684).

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

325282640 is a wasteful number, since it uses less digits than its factorization.

325282640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066046 (or 4066040 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 325282640 is about 18035.5936969095. The cubic root of 325282640 is about 687.7336832060.

The spelling of 325282640 in words is "three hundred twenty-five million, two hundred eighty-two thousand, six hundred forty".