422191 has 8 divisors (see below), whose sum is σ = 526464. Its totient is φ = 328920.

The previous prime is 422183. The next prime is 422203. The reversal of 422191 is 191224.

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 422191 - 2³ = 422183 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 (422101) 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, 2665 + ... + 2818.

It is an arithmetic number, because the mean of its divisors is an integer number (65808).

2⁴²²¹⁹¹ is an apocalyptic number.

422191 is a deficient number, since it is larger than the sum of its proper divisors (104273).

422191 is a wasteful number, since it uses less digits than its factorization.

422191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5501.

The product of its digits is 144, while the sum is 19.

The square root of 422191 is about 649.7622642167. The cubic root of 422191 is about 75.0187212524.

The spelling of 422191 in words is "four hundred twenty-two thousand, one hundred ninety-one".