228420422828 has 48 divisors (see below), whose sum is σ = 433538632800. Its totient is φ = 104677440000.

The previous prime is 228420422809. The next prime is 228420422873. The reversal of 228420422828 is 828224024822.

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, 32623328 + ... + 32630328.

It is an arithmetic number, because the mean of its divisors is an integer number (9032054850).

Almost surely, 2^228420422828 is an apocalyptic number.

It is an amenable number.

228420422828 is a deficient number, since it is larger than the sum of its proper divisors (205118209972).

228420422828 is a wasteful number, since it uses less digits than its factorization.

228420422828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11378 (or 11376 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 44.

It can be divided in two parts, 2284204 and 22828, that added together give a palindrome (2307032).

The spelling of 228420422828 in words is "two hundred twenty-eight billion, four hundred twenty million, four hundred twenty-two thousand, eight hundred twenty-eight".