8428422 has 8 divisors (see below), whose sum is σ = 16856856. Its totient is φ = 2809472.

The previous prime is 8428421. The next prime is 8428423. The reversal of 8428422 is 2248248.

It is an interprime number because it is at equal distance from previous prime (8428421) and next prime (8428423).

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

8428422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 8428422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8428421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702363 + ... + 702374.

It is an arithmetic number, because the mean of its divisors is an integer number (2107107).

Almost surely, 2^8428422 is an apocalyptic number.

8428422 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.

8428422 is a wasteful number, since it uses less digits than its factorization.

8428422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404742.

The product of its digits is 8192, while the sum is 30.

The square root of 8428422 is about 2903.1744694386. The cubic root of 8428422 is about 203.5082832424.

The spelling of 8428422 in words is "eight million, four hundred twenty-eight thousand, four hundred twenty-two".