6628422 has 8 divisors (see below), whose sum is σ = 13256856. Its totient is φ = 2209472.

The previous prime is 6628421. The next prime is 6628423. The reversal of 6628422 is 2248266.

It is an interprime number because it is at equal distance from previous prime (6628421) and next prime (6628423).

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

6628422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 6628422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6628421) 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, 552363 + ... + 552374.

It is an arithmetic number, because the mean of its divisors is an integer number (1657107).

Almost surely, 2^6628422 is an apocalyptic number.

6628422 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.

6628422 is a wasteful number, since it uses less digits than its factorization.

6628422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104742.

The product of its digits is 9216, while the sum is 30.

The square root of 6628422 is about 2574.5721974728. The cubic root of 6628422 is about 187.8466192767.

The spelling of 6628422 in words is "six million, six hundred twenty-eight thousand, four hundred twenty-two".