325661644 has 36 divisors (see below), whose sum is σ = 723227400. Its totient is φ = 126880320.

The previous prime is 325661641. The next prime is 325661657. The reversal of 325661644 is 446166523.

325661644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (325661641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73369 + ... + 77680.

It is an arithmetic number, because the mean of its divisors is an integer number (20089650).

Almost surely, 2^325661644 is an apocalyptic number.

It is an amenable number.

325661644 is an abundant number, since it is smaller than the sum of its proper divisors (397565756).

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

325661644 is a wasteful number, since it uses less digits than its factorization.

325661644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151078 (or 151069 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 325661644 is about 18046.0977499292. The cubic root of 325661644 is about 688.0006844909. Note that the first 3 decimals are identical.

The spelling of 325661644 in words is "three hundred twenty-five million, six hundred sixty-one thousand, six hundred forty-four".