422185 has 4 divisors (see below), whose sum is σ = 506628. Its totient is φ = 337744.

The previous prime is 422183. The next prime is 422203. The reversal of 422185 is 581224.

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 238144 + 184041 = 488^2 + 429^2 .

It is a cyclic number.

It is not a de Polignac number, because 422185 - 2¹ = 422183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422183) 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, 42214 + ... + 42223.

It is an arithmetic number, because the mean of its divisors is an integer number (126657).

2⁴²²¹⁸⁵ is an apocalyptic number.

It is an amenable number.

422185 is a deficient number, since it is larger than the sum of its proper divisors (84443).

422185 is an equidigital number, since it uses as much as digits as its factorization.

422185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84442.

The product of its digits is 640, while the sum is 22.

The square root of 422185 is about 649.7576471270. The cubic root of 422185 is about 75.0183658726.

The spelling of 422185 in words is "four hundred twenty-two thousand, one hundred eighty-five".