422238031 has 2 divisors, whose sum is σ = 422238032. Its totient is φ = 422238030.

The previous prime is 422238029. The next prime is 422238077. The reversal of 422238031 is 130832224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422238031 - 2¹ = 422238029 is a prime.

It is a super-2 number, since 2×422238031² = 356569909645513922, which contains 22 as substring.

Together with 422238029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 422237987 and 422238005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422238731) 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 as a sum of consecutive naturals, namely, 211119015 + 211119016.

It is an arithmetic number, because the mean of its divisors is an integer number (211119016).

Almost surely, 2^422238031 is an apocalyptic number.

422238031 is a deficient number, since it is larger than the sum of its proper divisors (1).

422238031 is an equidigital number, since it uses as much as digits as its factorization.

422238031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 422238031 is about 20548.4313513222. The cubic root of 422238031 is about 750.2150678034.

The spelling of 422238031 in words is "four hundred twenty-two million, two hundred thirty-eight thousand, thirty-one".