422324144 has 40 divisors (see below), whose sum is σ = 897336912. Its totient is φ = 190955520.

The previous prime is 422324143. The next prime is 422324209. The reversal of 422324144 is 441423224.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (422324141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27752 + ... + 40184.

Almost surely, 2^422324144 is an apocalyptic number.

422324144 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 422324144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448668456).

422324144 is an abundant number, since it is smaller than the sum of its proper divisors (475012768).

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

422324144 is a wasteful number, since it uses less digits than its factorization.

422324144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12645 (or 12639 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 422324144 is about 20550.5266112574. The cubic root of 422324144 is about 750.2660650088.

Adding to 422324144 its reverse (441423224), we get a palindrome (863747368).

The spelling of 422324144 in words is "four hundred twenty-two million, three hundred twenty-four thousand, one hundred forty-four".