328911648 has 192 divisors, whose sum is σ = 1013523840. Its totient is φ = 92454912.

The previous prime is 328911637. The next prime is 328911683. The reversal of 328911648 is 846119823.

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 31 ways as a sum of consecutive naturals, for example, 784783 + ... + 785201.

It is an arithmetic number, because the mean of its divisors is an integer number (5278770).

Almost surely, 2^328911648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328911648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506761920).

328911648 is an abundant number, since it is smaller than the sum of its proper divisors (684612192).

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

328911648 is a wasteful number, since it uses less digits than its factorization.

328911648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 491 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 328911648 is about 18135.9214819650. The cubic root of 328911648 is about 690.2817920644.

The spelling of 328911648 in words is "three hundred twenty-eight million, nine hundred eleven thousand, six hundred forty-eight".