422140323 has 48 divisors (see below), whose sum is σ = 640442880. Its totient is φ = 247008960.

The previous prime is 422140273. The next prime is 422140343. The reversal of 422140323 is 323041224.

It is not a de Polignac number, because 422140323 - 2⁹ = 422139811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422140323.

It is not an unprimeable number, because it can be changed into a prime (422140343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1859536 + ... + 1859762.

It is an arithmetic number, because the mean of its divisors is an integer number (13342560).

Almost surely, 2^422140323 is an apocalyptic number.

422140323 is a deficient number, since it is larger than the sum of its proper divisors (218302557).

422140323 is a wasteful number, since it uses less digits than its factorization.

422140323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 422140323 is about 20546.0537086809. The cubic root of 422140323 is about 750.1571954949.

Adding to 422140323 its reverse (323041224), we get a palindrome (745181547).

Subtracting from 422140323 its reverse (323041224), we obtain a palindrome (99099099).

It can be divided in two parts, 4221 and 40323, that added together give a palindrome (44544).

The spelling of 422140323 in words is "four hundred twenty-two million, one hundred forty thousand, three hundred twenty-three".