328287856 has 40 divisors (see below), whose sum is σ = 699580224. Its totient is φ = 148289280.

The previous prime is 328287853. The next prime is 328287887. The reversal of 328287856 is 658782823.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328287851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7015 + ... + 26566.

Almost surely, 2^328287856 is an apocalyptic number.

It is an amenable number.

328287856 is an abundant number, since it is smaller than the sum of its proper divisors (371292368).

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

328287856 is a wasteful number, since it uses less digits than its factorization.

328287856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33649 (or 33643 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The square root of 328287856 is about 18118.7156277701. The cubic root of 328287856 is about 689.8451350267.

The spelling of 328287856 in words is "three hundred twenty-eight million, two hundred eighty-seven thousand, eight hundred fifty-six".