328256305 has 24 divisors (see below), whose sum is σ = 427956480. Its totient is φ = 241600320.

The previous prime is 328256273. The next prime is 328256323. The reversal of 328256305 is 503652823.

It is a happy number.

It is not a de Polignac number, because 328256305 - 2⁵ = 328256273 is a prime.

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, 404350 + ... + 405160.

It is an arithmetic number, because the mean of its divisors is an integer number (17831520).

Almost surely, 2^328256305 is an apocalyptic number.

It is an amenable number.

328256305 is a deficient number, since it is larger than the sum of its proper divisors (99700175).

328256305 is a wasteful number, since it uses less digits than its factorization.

328256305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 328256305 is about 18117.8449325520. The cubic root of 328256305 is about 689.8230345024.

The spelling of 328256305 in words is "three hundred twenty-eight million, two hundred fifty-six thousand, three hundred five".