328220560 has 40 divisors (see below), whose sum is σ = 787735296. Its totient is φ = 127052160.

The previous prime is 328220531. The next prime is 328220567. The reversal of 328220560 is 65022823.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (328220567) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 63694 + ... + 68653.

Almost surely, 2^328220560 is an apocalyptic number.

It is an amenable number.

328220560 is an abundant number, since it is smaller than the sum of its proper divisors (459514736).

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

328220560 is a wasteful number, since it uses less digits than its factorization.

328220560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132391 (or 132385 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 328220560 is about 18116.8584473137. The cubic root of 328220560 is about 689.7979944965.

The spelling of 328220560 in words is "three hundred twenty-eight million, two hundred twenty thousand, five hundred sixty".