422205 has 16 divisors (see below), whose sum is σ = 772224. Its totient is φ = 192960.

The previous prime is 422203. The next prime is 422209. The reversal of 422205 is 502224.

It is not a de Polignac number, because 422205 - 2¹ = 422203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a d-powerful number, because it can be written as 4² + 2¹⁴ + 2¹⁶ + 2¹⁸ + 0 + 5⁷ .

422205 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1906 + ... + 2115.

It is an arithmetic number, because the mean of its divisors is an integer number (48264).

2⁴²²²⁰⁵ is an apocalyptic number.

It is an amenable number.

422205 is a deficient number, since it is larger than the sum of its proper divisors (350019).

422205 is a wasteful number, since it uses less digits than its factorization.

422205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 422205 is about 649.7730372984. The cubic root of 422205 is about 75.0195504588.

Adding to 422205 its reverse (502224), we get a palindrome (924429).

The spelling of 422205 in words is "four hundred twenty-two thousand, two hundred five".