422140043 has 24 divisors (see below), whose sum is σ = 483004368. Its totient is φ = 366700608.

The previous prime is 422140013. The next prime is 422140057. The reversal of 422140043 is 340041224.

It is not a de Polignac number, because 422140043 - 2²⁰ = 421091467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422139997 and 422140024.

It is not an unprimeable number, because it can be changed into a prime (422140003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1374896 + ... + 1375202.

It is an arithmetic number, because the mean of its divisors is an integer number (20125182).

Almost surely, 2^422140043 is an apocalyptic number.

422140043 is a deficient number, since it is larger than the sum of its proper divisors (60864325).

422140043 is a wasteful number, since it uses less digits than its factorization.

422140043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 422140043 is about 20546.0468947192. The cubic root of 422140043 is about 750.1570296385.

Adding to 422140043 its reverse (340041224), we get a palindrome (762181267).

The spelling of 422140043 in words is "four hundred twenty-two million, one hundred forty thousand, forty-three".