328055556 has 24 divisors (see below), whose sum is σ = 772488640. Its totient is φ = 108348192.

The previous prime is 328055549. The next prime is 328055587. The reversal of 328055556 is 655550823.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124096 + ... + 126711.

Almost surely, 2^328055556 is an apocalyptic number.

It is an amenable number.

328055556 is an abundant number, since it is smaller than the sum of its proper divisors (444433084).

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

328055556 is a wasteful number, since it uses less digits than its factorization.

328055556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250923 (or 250921 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The square root of 328055556 is about 18112.3039947987. The cubic root of 328055556 is about 689.6823826989.

The spelling of 328055556 in words is "three hundred twenty-eight million, fifty-five thousand, five hundred fifty-six".