422635164 has 192 divisors, whose sum is σ = 1293143040. Its totient is φ = 104509440.

The previous prime is 422635163. The next prime is 422635211. The reversal of 422635164 is 461536224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422635163) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1003674 + ... + 1004094.

It is an arithmetic number, because the mean of its divisors is an integer number (6735120).

Almost surely, 2^422635164 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 422635164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646571520).

422635164 is an abundant number, since it is smaller than the sum of its proper divisors (870507876).

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

422635164 is a wasteful number, since it uses less digits than its factorization.

422635164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 506 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 422635164 is about 20558.0924212340. The cubic root of 422635164 is about 750.4501972647.

The spelling of 422635164 in words is "four hundred twenty-two million, six hundred thirty-five thousand, one hundred sixty-four".