422865184 has 48 divisors (see below), whose sum is σ = 960918336. Its totient is φ = 179424000.

The previous prime is 422865181. The next prime is 422865199. The reversal of 422865184 is 481568224.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (422865181) 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 7 ways as a sum of consecutive naturals, for example, 13279 + ... + 31969.

It is an arithmetic number, because the mean of its divisors is an integer number (20019132).

Almost surely, 2^422865184 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 422865184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480459168).

422865184 is an abundant number, since it is smaller than the sum of its proper divisors (538053152).

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

422865184 is a wasteful number, since it uses less digits than its factorization.

422865184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18809 (or 18801 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 422865184 is about 20563.6860509005. The cubic root of 422865184 is about 750.5863172271.

The spelling of 422865184 in words is "four hundred twenty-two million, eight hundred sixty-five thousand, one hundred eighty-four".