228330438028 has 48 divisors (see below), whose sum is σ = 499300349184. Its totient is φ = 88759045440.

The previous prime is 228330437941. The next prime is 228330438047. The reversal of 228330438028 is 820834033822.

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, 700275 + ... + 973162.

It is an arithmetic number, because the mean of its divisors is an integer number (10402090608).

Almost surely, 2^228330438028 is an apocalyptic number.

228330438028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228330438028 is an abundant number, since it is smaller than the sum of its proper divisors (270969911156).

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

228330438028 is a wasteful number, since it uses less digits than its factorization.

228330438028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673902 (or 1673900 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 228330438028 in words is "two hundred twenty-eight billion, three hundred thirty million, four hundred thirty-eight thousand, twenty-eight".