422511856 has 40 divisors (see below), whose sum is σ = 885637760. Its totient is φ = 194109696.

The previous prime is 422511839. The next prime is 422511857. The reversal of 422511856 is 658115224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422511857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41830 + ... + 50938.

It is an arithmetic number, because the mean of its divisors is an integer number (22140944).

Almost surely, 2^422511856 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 422511856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442818880).

422511856 is an abundant number, since it is smaller than the sum of its proper divisors (463125904).

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

422511856 is a wasteful number, since it uses less digits than its factorization.

422511856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9353 (or 9347 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 422511856 is about 20555.0931887939. The cubic root of 422511856 is about 750.3772064034.

The spelling of 422511856 in words is "four hundred twenty-two million, five hundred eleven thousand, eight hundred fifty-six".