422071 has 4 divisors (see below), whose sum is σ = 454552. Its totient is φ = 389592.

The previous prime is 422069. The next prime is 422077. The reversal of 422071 is 170224.

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

It is a cyclic number.

It is not a de Polignac number, because 422071 - 2¹ = 422069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422077) 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 3 ways as a sum of consecutive naturals, for example, 16221 + ... + 16246.

It is an arithmetic number, because the mean of its divisors is an integer number (113638).

2⁴²²⁰⁷¹ is an apocalyptic number.

422071 is a deficient number, since it is larger than the sum of its proper divisors (32481).

422071 is a wasteful number, since it uses less digits than its factorization.

422071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32480.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 422071 is about 649.6699161882. The cubic root of 422071 is about 75.0116130166.

Adding to 422071 its reverse (170224), we get a palindrome (592295).

The spelling of 422071 in words is "four hundred twenty-two thousand, seventy-one", and thus it is an iban number.