422646171 has 4 divisors (see below), whose sum is σ = 563528232. Its totient is φ = 281764112.

The previous prime is 422646139. The next prime is 422646239. The reversal of 422646171 is 171646224.

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 422646171 - 2⁵ = 422646139 is a prime.

It is a super-2 number, since 2×422646171² = 357259571721922482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422646971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70441026 + ... + 70441031.

It is an arithmetic number, because the mean of its divisors is an integer number (140882058).

Almost surely, 2^422646171 is an apocalyptic number.

422646171 is a deficient number, since it is larger than the sum of its proper divisors (140882061).

422646171 is a wasteful number, since it uses less digits than its factorization.

422646171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140882060.

The product of its digits is 16128, while the sum is 33.

The square root of 422646171 is about 20558.3601242901. The cubic root of 422646171 is about 750.4567120512.

The spelling of 422646171 in words is "four hundred twenty-two million, six hundred forty-six thousand, one hundred seventy-one".