422240231 has 16 divisors (see below), whose sum is σ = 497825280. Its totient is φ = 350650080.

The previous prime is 422240219. The next prime is 422240267. The reversal of 422240231 is 132042224.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422240231 is a prime.

It is a super-2 number, since 2×422240231² = 356573625349866722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422240281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21230 + ... + 35988.

It is an arithmetic number, because the mean of its divisors is an integer number (31114080).

Almost surely, 2^422240231 is an apocalyptic number.

422240231 is a deficient number, since it is larger than the sum of its proper divisors (75585049).

422240231 is a wasteful number, since it uses less digits than its factorization.

422240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14894.

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

The square root of 422240231 is about 20548.4848833193. The cubic root of 422240231 is about 750.2163707574.

Adding to 422240231 its reverse (132042224), we get a palindrome (554282455).

The spelling of 422240231 in words is "four hundred twenty-two million, two hundred forty thousand, two hundred thirty-one".