422285 has 4 divisors (see below), whose sum is σ = 506748. Its totient is φ = 337824.

The previous prime is 422267. The next prime is 422287. The reversal of 422285 is 582224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 212521 + 209764 = 461^2 + 458^2 .

It is a cyclic number.

It is not a de Polignac number, because 422285 - 2⁸ = 422029 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 2⁵ + 2¹⁶ + 2¹⁸ + 8² + 5⁷ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42224 + ... + 42233.

It is an arithmetic number, because the mean of its divisors is an integer number (126687).

2⁴²²²⁸⁵ is an apocalyptic number.

It is an amenable number.

422285 is a deficient number, since it is larger than the sum of its proper divisors (84463).

422285 is an equidigital number, since it uses as much as digits as its factorization.

422285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84462.

The product of its digits is 1280, while the sum is 23.

The square root of 422285 is about 649.8345943392. The cubic root of 422285 is about 75.0242884297.

It can be divided in two parts, 422 and 285, that added together give a palindrome (707).

The spelling of 422285 in words is "four hundred twenty-two thousand, two hundred eighty-five".