422188 has 24 divisors (see below), whose sum is σ = 832608. Its totient is φ = 185856.

The previous prime is 422183. The next prime is 422203. The reversal of 422188 is 881224.

It is not an unprimeable number, because it can be changed into a prime (422183) by changing a digit.

422188 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020 + ... + 1372.

It is an arithmetic number, because the mean of its divisors is an integer number (34692).

2⁴²²¹⁸⁸ is an apocalyptic number.

It is an amenable number.

422188 is a deficient number, since it is larger than the sum of its proper divisors (410420).

422188 is a wasteful number, since it uses less digits than its factorization.

422188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 391 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 422188 is about 649.7599556759. The cubic root of 422188 is about 75.0185435629.

The spelling of 422188 in words is "four hundred twenty-two thousand, one hundred eighty-eight".