422628856 has 32 divisors (see below), whose sum is σ = 898304400. Its totient is φ = 184792320.

The previous prime is 422628839. The next prime is 422628893. The reversal of 422628856 is 658826224.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 104965 + ... + 108916.

Almost surely, 2^422628856 is an apocalyptic number.

It is an amenable number.

422628856 is an abundant number, since it is smaller than the sum of its proper divisors (475675544).

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

422628856 is a wasteful number, since it uses less digits than its factorization.

422628856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213919 (or 213915 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 422628856 is about 20557.9390017579. The cubic root of 422628856 is about 750.4464636557.

The spelling of 422628856 in words is "four hundred twenty-two million, six hundred twenty-eight thousand, eight hundred fifty-six".