422065 has 16 divisors (see below), whose sum is σ = 599040. Its totient is φ = 279360.

The previous prime is 422063. The next prime is 422069. The reversal of 422065 is 560224.

It is not a de Polignac number, because 422065 - 2¹ = 422063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891 + ... + 1279.

It is an arithmetic number, because the mean of its divisors is an integer number (37440).

2⁴²²⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

422065 is a deficient number, since it is larger than the sum of its proper divisors (176975).

422065 is a wasteful number, since it uses less digits than its factorization.

With its successor (422066) it forms an eRAP, since the sums of their prime factors are consecutive (432 and 433).

422065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 422065 is about 649.6652984422. The cubic root of 422065 is about 75.0112575694.

Adding to 422065 its reverse (560224), we get a palindrome (982289).

The spelling of 422065 in words is "four hundred twenty-two thousand, sixty-five".