422642171 has 8 divisors (see below), whose sum is σ = 485130720. Its totient is φ = 360681408.

The previous prime is 422642167. The next prime is 422642203. The reversal of 422642171 is 171246224.

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

It is a cyclic number.

It is not a de Polignac number, because 422642171 - 2² = 422642167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422642111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130226 + ... + 133431.

It is an arithmetic number, because the mean of its divisors is an integer number (60641340).

Almost surely, 2^422642171 is an apocalyptic number.

422642171 is a deficient number, since it is larger than the sum of its proper divisors (62488549).

422642171 is a wasteful number, since it uses less digits than its factorization.

422642171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263893.

The product of its digits is 5376, while the sum is 29.

The square root of 422642171 is about 20558.2628400359. The cubic root of 422642171 is about 750.4543445576.

Adding to 422642171 its reverse (171246224), we get a palindrome (593888395).

The spelling of 422642171 in words is "four hundred twenty-two million, six hundred forty-two thousand, one hundred seventy-one".