422855616 has 84 divisors (see below), whose sum is σ = 1144262888. Its totient is φ = 137814528.

The previous prime is 422855579. The next prime is 422855617. The reversal of 422855616 is 616558224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422855617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423630 + ... + 424626.

Almost surely, 2^422855616 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 422855616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572131444).

422855616 is an abundant number, since it is smaller than the sum of its proper divisors (721407272).

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

422855616 is an equidigital number, since it uses as much as digits as its factorization.

422855616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1049 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 422855616 is about 20563.4534064685. The cubic root of 422855616 is about 750.5806561131.

The spelling of 422855616 in words is "four hundred twenty-two million, eight hundred fifty-five thousand, six hundred sixteen".