422909223 has 32 divisors (see below), whose sum is σ = 652204032. Its totient is φ = 241315200.

The previous prime is 422909183. The next prime is 422909237. The reversal of 422909223 is 322909224.

It is a happy number.

It is not a de Polignac number, because 422909223 - 2¹⁴ = 422892839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422909423) 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, 32265 + ... + 43437.

It is an arithmetic number, because the mean of its divisors is an integer number (20381376).

Almost surely, 2^422909223 is an apocalyptic number.

422909223 is a deficient number, since it is larger than the sum of its proper divisors (229294809).

422909223 is a wasteful number, since it uses less digits than its factorization.

422909223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11255.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 422909223 is about 20564.7568184017. The cubic root of 422909223 is about 750.6123727523.

Subtracting from 422909223 its reverse (322909224), we obtain a palindrome (99999999).

The spelling of 422909223 in words is "four hundred twenty-two million, nine hundred nine thousand, two hundred twenty-three".