328216056 has 64 divisors (see below), whose sum is σ = 953683200. Its totient is φ = 92183808.

The previous prime is 328216039. The next prime is 328216079. The reversal of 328216056 is 650612823.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6645 + ... + 26468.

It is an arithmetic number, because the mean of its divisors is an integer number (14901300).

Almost surely, 2^328216056 is an apocalyptic number.

It is an amenable number.

328216056 is an abundant number, since it is smaller than the sum of its proper divisors (625467144).

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

328216056 is a wasteful number, since it uses less digits than its factorization.

328216056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33188 (or 33184 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 328216056 is about 18116.7341427753. The cubic root of 328216056 is about 689.7948392357.

Adding to 328216056 its reverse (650612823), we get a palindrome (978828879).

The spelling of 328216056 in words is "three hundred twenty-eight million, two hundred sixteen thousand, fifty-six".