422304231 has 4 divisors (see below), whose sum is σ = 563072312. Its totient is φ = 281536152.

The previous prime is 422304229. The next prime is 422304251. The reversal of 422304231 is 132403224.

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

It is not a de Polignac number, because 422304231 - 2¹ = 422304229 is a prime.

It is a super-2 number, since 2×422304231² = 356681727041002722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422304198 and 422304207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422304251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70384036 + ... + 70384041.

It is an arithmetic number, because the mean of its divisors is an integer number (140768078).

Almost surely, 2^422304231 is an apocalyptic number.

422304231 is a deficient number, since it is larger than the sum of its proper divisors (140768081).

422304231 is a wasteful number, since it uses less digits than its factorization.

422304231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140768080.

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

The square root of 422304231 is about 20550.0421167452. The cubic root of 422304231 is about 750.2542728951.

Adding to 422304231 its reverse (132403224), we get a palindrome (554707455).

The spelling of 422304231 in words is "four hundred twenty-two million, three hundred four thousand, two hundred thirty-one".