422870100 has 72 divisors (see below), whose sum is σ = 1227108960. Its totient is φ = 112433280.

The previous prime is 422870059. The next prime is 422870131. The reversal of 422870100 is 1078224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110011 + ... + 113789.

It is an arithmetic number, because the mean of its divisors is an integer number (17043180).

Almost surely, 2^422870100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422870100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613554480).

422870100 is an abundant number, since it is smaller than the sum of its proper divisors (804238860).

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

422870100 is a wasteful number, since it uses less digits than its factorization.

422870100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169 (or 4162 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 422870100 is about 20563.8055816524. The cubic root of 422870100 is about 750.5892258515.

The spelling of 422870100 in words is "four hundred twenty-two million, eight hundred seventy thousand, one hundred".