422635136 has 128 divisors (see below), whose sum is σ = 1060767360. Its totient is φ = 162938880.

The previous prime is 422635117. The next prime is 422635141. The reversal of 422635136 is 631536224.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1350116 + ... + 1350428.

It is an arithmetic number, because the mean of its divisors is an integer number (8287245).

Almost surely, 2^422635136 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 422635136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530383680).

422635136 is an abundant number, since it is smaller than the sum of its proper divisors (638132224).

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

422635136 is a wasteful number, since it uses less digits than its factorization.

422635136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 470 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 422635136 is about 20558.0917402370. The cubic root of 422635136 is about 750.4501806920.

The spelling of 422635136 in words is "four hundred twenty-two million, six hundred thirty-five thousand, one hundred thirty-six".