422420144143 has 16 divisors (see below), whose sum is σ = 440416136160. Its totient is φ = 404654140800.

The previous prime is 422420144093. The next prime is 422420144171. The reversal of 422420144143 is 341441024224.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422420144143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422420144843) 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, 24384721 + ... + 24402037.

It is an arithmetic number, because the mean of its divisors is an integer number (27526008510).

Almost surely, 2^422420144143 is an apocalyptic number.

422420144143 is a deficient number, since it is larger than the sum of its proper divisors (17995992017).

422420144143 is a wasteful number, since it uses less digits than its factorization.

422420144143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23898.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 422420144143 its reverse (341441024224), we get a palindrome (763861168367).

The spelling of 422420144143 in words is "four hundred twenty-two billion, four hundred twenty million, one hundred forty-four thousand, one hundred forty-three".