325321644 has 12 divisors (see below), whose sum is σ = 759083864. Its totient is φ = 108440544.

The previous prime is 325321643. The next prime is 325321697. The reversal of 325321644 is 446123523.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (325321643) 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, 13555057 + ... + 13555080.

Almost surely, 2^325321644 is an apocalyptic number.

It is an amenable number.

325321644 is an abundant number, since it is smaller than the sum of its proper divisors (433762220).

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

325321644 is a wasteful number, since it uses less digits than its factorization.

325321644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27110144 (or 27110142 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 325321644 is about 18036.6749707367. The cubic root of 325321644 is about 687.7611703707.

The spelling of 325321644 in words is "three hundred twenty-five million, three hundred twenty-one thousand, six hundred forty-four".