422239 has 2 divisors, whose sum is σ = 422240. Its totient is φ = 422238.

The previous prime is 422231. The next prime is 422243. The reversal of 422239 is 932224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422239 - 2³ = 422231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211119 + 211120.

It is an arithmetic number, because the mean of its divisors is an integer number (211120).

2⁴²²²³⁹ is an apocalyptic number.

422239 is a deficient number, since it is larger than the sum of its proper divisors (1).

422239 is an equidigital number, since it uses as much as digits as its factorization.

422239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 422239 is about 649.7991997533. The cubic root of 422239 is about 75.0215641696.

The spelling of 422239 in words is "four hundred twenty-two thousand, two hundred thirty-nine".