328768564 has 12 divisors (see below), whose sum is σ = 575489124. Its totient is φ = 164343104.

The previous prime is 328768543. The next prime is 328768577. The reversal of 328768564 is 465867823.

It can be written as a sum of positive squares in 2 ways, for example, as 166410000 + 162358564 = 12900^2 + 12742^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 14082 + ... + 29254.

It is an arithmetic number, because the mean of its divisors is an integer number (47957427).

Almost surely, 2^328768564 is an apocalyptic number.

It is an amenable number.

328768564 is a deficient number, since it is larger than the sum of its proper divisors (246720560).

328768564 is a wasteful number, since it uses less digits than its factorization.

328768564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20594 (or 20592 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The square root of 328768564 is about 18131.9762850054. The cubic root of 328768564 is about 690.1816814865.

The spelling of 328768564 in words is "three hundred twenty-eight million, seven hundred sixty-eight thousand, five hundred sixty-four".