422323143 has 32 divisors (see below), whose sum is σ = 652700160. Its totient is φ = 240428160.

The previous prime is 422323141. The next prime is 422323147. The reversal of 422323143 is 341323224.

It is not a de Polignac number, because 422323143 - 2¹ = 422323141 is a prime.

It is a super-2 number, since 2×422323143² = 356713674226796898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422323141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29446 + ... + 41372.

It is an arithmetic number, because the mean of its divisors is an integer number (20396880).

Almost surely, 2^422323143 is an apocalyptic number.

422323143 is a deficient number, since it is larger than the sum of its proper divisors (230377017).

422323143 is a wasteful number, since it uses less digits than its factorization.

422323143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12007.

The product of its digits is 3456, while the sum is 24.

The square root of 422323143 is about 20550.5022566360. The cubic root of 422323143 is about 750.2654722438.

Adding to 422323143 its reverse (341323224), we get a palindrome (763646367).

The spelling of 422323143 in words is "four hundred twenty-two million, three hundred twenty-three thousand, one hundred forty-three".