422279 has 8 divisors (see below), whose sum is σ = 496272. Its totient is φ = 354240.

The previous prime is 422267. The next prime is 422287. The reversal of 422279 is 972224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422279 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 1619.

It is an arithmetic number, because the mean of its divisors is an integer number (62034).

2⁴²²²⁷⁹ is an apocalyptic number.

422279 is a deficient number, since it is larger than the sum of its proper divisors (73993).

422279 is a wasteful number, since it uses less digits than its factorization.

422279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977.

The product of its digits is 2016, while the sum is 26.

The square root of 422279 is about 649.8299777634. The cubic root of 422279 is about 75.0239331027.

Subtracting 422279 from its reverse (972224), we obtain a palindrome (549945).

The spelling of 422279 in words is "four hundred twenty-two thousand, two hundred seventy-nine".