328455556 has 36 divisors (see below), whose sum is σ = 679011984. Its totient is φ = 137810400.

The previous prime is 328455553. The next prime is 328455581. The reversal of 328455556 is 655554823.

It is not an unprimeable number, because it can be changed into a prime (328455553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14650 + ... + 29521.

It is an arithmetic number, because the mean of its divisors is an integer number (18861444).

Almost surely, 2^328455556 is an apocalyptic number.

It is an amenable number.

328455556 is an abundant number, since it is smaller than the sum of its proper divisors (350556428).

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

328455556 is a wasteful number, since it uses less digits than its factorization.

328455556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44212 (or 44197 counting only the distinct ones).

The product of its digits is 720000, while the sum is 43.

The square root of 328455556 is about 18123.3428483820. The cubic root of 328455556 is about 689.9625800613.

The spelling of 328455556 in words is "three hundred twenty-eight million, four hundred fifty-five thousand, five hundred fifty-six".