422812 has 24 divisors (see below), whose sum is σ = 818496. Its totient is φ = 189888.

The previous prime is 422803. The next prime is 422827. The reversal of 422812 is 218224.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 422812.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 2358 + ... + 2530.

It is an arithmetic number, because the mean of its divisors is an integer number (34104).

2⁴²²⁸¹² is an apocalyptic number.

It is an amenable number.

422812 is a deficient number, since it is larger than the sum of its proper divisors (395684).

422812 is a wasteful number, since it uses less digits than its factorization.

422812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 235 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 422812 is about 650.2399557087. The cubic root of 422812 is about 75.0554848682.

The spelling of 422812 in words is "four hundred twenty-two thousand, eight hundred twelve".