428876868 has 48 divisors (see below), whose sum is σ = 1145674880. Its totient is φ = 122321664.

The previous prime is 428876843. The next prime is 428876881. The reversal of 428876868 is 868678824.

It is a happy number.

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, 47328 + ... + 55656.

Almost surely, 2^428876868 is an apocalyptic number.

It is an amenable number.

428876868 is an abundant number, since it is smaller than the sum of its proper divisors (716798012).

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

428876868 is a wasteful number, since it uses less digits than its factorization.

428876868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8956 (or 8954 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 57.

The square root of 428876868 is about 20709.3425293996. The cubic root of 428876868 is about 754.1265093656.

The spelling of 428876868 in words is "four hundred twenty-eight million, eight hundred seventy-six thousand, eight hundred sixty-eight".