422571 has 8 divisors (see below), whose sum is σ = 570880. Its totient is φ = 277992.

The previous prime is 422567. The next prime is 422573. The reversal of 422571 is 175224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422571 - 2² = 422567 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422573) 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 7 ways as a sum of consecutive naturals, for example, 655 + ... + 1128.

It is an arithmetic number, because the mean of its divisors is an integer number (71360).

2⁴²²⁵⁷¹ is an apocalyptic number.

422571 is a deficient number, since it is larger than the sum of its proper divisors (148309).

422571 is a wasteful number, since it uses less digits than its factorization.

422571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865.

The product of its digits is 560, while the sum is 21.

The square root of 422571 is about 650.0546130903. The cubic root of 422571 is about 75.0412217838.

Adding to 422571 its reverse (175224), we get a palindrome (597795).

The spelling of 422571 in words is "four hundred twenty-two thousand, five hundred seventy-one".