422343144 has 48 divisors (see below), whose sum is σ = 1144836420. Its totient is φ = 140659200.

The previous prime is 422343137. The next prime is 422343149. The reversal of 422343144 is 441343224.

It is a happy number.

422343144 is a `hidden beast` number, since 4 + 223 + 431 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 412496100 + 9847044 = 20310^2 + 3138^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (422343149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126294 + ... + 129594.

Almost surely, 2^422343144 is an apocalyptic number.

It is an amenable number.

422343144 is an abundant number, since it is smaller than the sum of its proper divisors (722493276).

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

422343144 is a wasteful number, since it uses less digits than its factorization.

422343144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090 (or 5083 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 422343144 is about 20550.9888813166. The cubic root of 422343144 is about 750.2773161151.

Adding to 422343144 its reverse (441343224), we get a palindrome (863686368).

The spelling of 422343144 in words is "four hundred twenty-two million, three hundred forty-three thousand, one hundred forty-four".