422340871 has 2 divisors, whose sum is σ = 422340872. Its totient is φ = 422340870.

The previous prime is 422340827. The next prime is 422340887. The reversal of 422340871 is 178043224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422340871 - 2¹⁹ = 421816583 is a prime.

It is a super-2 number, since 2×422340871² = 356743622634077282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422340811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211170435 + 211170436.

It is an arithmetic number, because the mean of its divisors is an integer number (211170436).

Almost surely, 2^422340871 is an apocalyptic number.

422340871 is a deficient number, since it is larger than the sum of its proper divisors (1).

422340871 is an equidigital number, since it uses as much as digits as its factorization.

422340871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 422340871 is about 20550.9335797671. The cubic root of 422340871 is about 750.2759701452.

The spelling of 422340871 in words is "four hundred twenty-two million, three hundred forty thousand, eight hundred seventy-one".