325322640 has 60 divisors (see below), whose sum is σ = 1092544284. Its totient is φ = 86752512.

The previous prime is 325322633. The next prime is 325322653. The reversal of 325322640 is 46223523.

It can be written as a sum of positive squares in 2 ways, for example, as 221771664 + 103550976 = 14892^2 + 10176^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225199 + ... + 226638.

Almost surely, 2^325322640 is an apocalyptic number.

325322640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

325322640 is an abundant number, since it is smaller than the sum of its proper divisors (767221644).

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

325322640 is a wasteful number, since it uses less digits than its factorization.

325322640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451856 (or 451847 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 325322640 is about 18036.7025811261. The cubic root of 325322640 is about 687.7618722499.

The spelling of 325322640 in words is "three hundred twenty-five million, three hundred twenty-two thousand, six hundred forty".