325259640 has 96 divisors (see below), whose sum is σ = 1119296880. Its totient is φ = 81632256.

The previous prime is 325259633. The next prime is 325259659. The reversal of 325259640 is 46952523.

325259640 is a `hidden beast` number, since 3 + 2 + 5 + 2 + 5 + 9 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 325259595 and 325259604.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 20454 + ... + 32693.

Almost surely, 2^325259640 is an apocalyptic number.

325259640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

325259640 is an abundant number, since it is smaller than the sum of its proper divisors (794037240).

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

325259640 is a wasteful number, since it uses less digits than its factorization.

325259640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53181 (or 53174 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 325259640 is about 18034.9560576121. The cubic root of 325259640 is about 687.7174734594.

The spelling of 325259640 in words is "three hundred twenty-five million, two hundred fifty-nine thousand, six hundred forty".