422040223 has 4 divisors (see below), whose sum is σ = 460407528. Its totient is φ = 383672920.

The previous prime is 422040209. The next prime is 422040233. The reversal of 422040223 is 322040224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422040223 - 2⁵ = 422040191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422040223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422040233) 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 3 ways as a sum of consecutive naturals, for example, 19183636 + ... + 19183657.

It is an arithmetic number, because the mean of its divisors is an integer number (115101882).

Almost surely, 2^422040223 is an apocalyptic number.

422040223 is a deficient number, since it is larger than the sum of its proper divisors (38367305).

422040223 is a wasteful number, since it uses less digits than its factorization.

422040223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38367304.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 422040223 is about 20543.6175733487. The cubic root of 422040223 is about 750.0978971469.

Adding to 422040223 its reverse (322040224), we get a palindrome (744080447).

Subtracting from 422040223 its reverse (322040224), we obtain a palindrome (99999999).

The spelling of 422040223 in words is "four hundred twenty-two million, forty thousand, two hundred twenty-three".