422144433 has 16 divisors (see below), whose sum is σ = 642303360. Its totient is φ = 273822768.

The previous prime is 422144419. The next prime is 422144447. The reversal of 422144433 is 334441224.

It is a happy number.

422144433 is a `hidden beast` number, since 4 + 2 + 214 + 443 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (422144419) and next prime (422144447).

It is not a de Polignac number, because 422144433 - 2⁹ = 422143921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 422144397 and 422144406.

It is not an unprimeable number, because it can be changed into a prime (422144483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210285 + ... + 212282.

It is an arithmetic number, because the mean of its divisors is an integer number (40143960).

Almost surely, 2^422144433 is an apocalyptic number.

It is an amenable number.

422144433 is a deficient number, since it is larger than the sum of its proper divisors (220158927).

422144433 is a wasteful number, since it uses less digits than its factorization.

422144433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422613 (or 422607 counting only the distinct ones).

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

The square root of 422144433 is about 20546.1537276445. The cubic root of 422144433 is about 750.1596300219.

Adding to 422144433 its reverse (334441224), we get a palindrome (756585657).

The spelling of 422144433 in words is "four hundred twenty-two million, one hundred forty-four thousand, four hundred thirty-three".