422806164 has 96 divisors (see below), whose sum is σ = 1138959360. Its totient is φ = 120729600.

The previous prime is 422806157. The next prime is 422806187. The reversal of 422806164 is 461608224.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659284 + ... + 659924.

It is an arithmetic number, because the mean of its divisors is an integer number (11864160).

Almost surely, 2^422806164 is an apocalyptic number.

422806164 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422806164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569479680).

422806164 is an abundant number, since it is smaller than the sum of its proper divisors (716153196).

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

422806164 is a wasteful number, since it uses less digits than its factorization.

422806164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 422806164 is about 20562.2509468200. The cubic root of 422806164 is about 750.5513954070.

The spelling of 422806164 in words is "four hundred twenty-two million, eight hundred six thousand, one hundred sixty-four".