422446229 has 2 divisors, whose sum is σ = 422446230. Its totient is φ = 422446228.

The previous prime is 422446201. The next prime is 422446231. The reversal of 422446229 is 922644224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295771204 + 126675025 = 17198^2 + 11255^2 .

It is a cyclic number.

It is not a de Polignac number, because 422446229 - 2⁸ = 422445973 is a prime.

It is a Sophie Germain prime.

Together with 422446231, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422446529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211223114 + 211223115.

It is an arithmetic number, because the mean of its divisors is an integer number (211223115).

Almost surely, 2^422446229 is an apocalyptic number.

It is an amenable number.

422446229 is a deficient number, since it is larger than the sum of its proper divisors (1).

422446229 is an equidigital number, since it uses as much as digits as its factorization.

422446229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 35.

The square root of 422446229 is about 20553.4967584594. The cubic root of 422446229 is about 750.3383534071.

The spelling of 422446229 in words is "four hundred twenty-two million, four hundred forty-six thousand, two hundred twenty-nine".