422543144 has 32 divisors (see below), whose sum is σ = 819763200. Its totient is φ = 203972160.

The previous prime is 422543141. The next prime is 422543153. The reversal of 422543144 is 441345224.

It is not an unprimeable number, because it can be changed into a prime (422543141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117014 + ... + 120570.

It is an arithmetic number, because the mean of its divisors is an integer number (25617600).

Almost surely, 2^422543144 is an apocalyptic number.

It is an amenable number.

422543144 is a deficient number, since it is larger than the sum of its proper divisors (397220056).

422543144 is a wasteful number, since it uses less digits than its factorization.

422543144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073 (or 4069 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

The square root of 422543144 is about 20555.8542512833. The cubic root of 422543144 is about 750.3957283472.

Adding to 422543144 its reverse (441345224), we get a palindrome (863888368).

The spelling of 422543144 in words is "four hundred twenty-two million, five hundred forty-three thousand, one hundred forty-four".