422238 has 8 divisors (see below), whose sum is σ = 844488. Its totient is φ = 140744.

The previous prime is 422231. The next prime is 422239. The reversal of 422238 is 832224.

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

422238 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422238.

It is not an unprimeable number, because it can be changed into a prime (422231) by changing a digit.

422238 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 35181 + ... + 35192.

It is an arithmetic number, because the mean of its divisors is an integer number (105561).

2⁴²²²³⁸ is an apocalyptic number.

422238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422238 is a wasteful number, since it uses less digits than its factorization.

422238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70378.

The product of its digits is 768, while the sum is 21.

The square root of 422238 is about 649.7984302843. The cubic root of 422238 is about 75.0215049444.

The spelling of 422238 in words is "four hundred twenty-two thousand, two hundred thirty-eight".