6628426 has 24 divisors (see below), whose sum is σ = 11655360. Its totient is φ = 2818872.

The previous prime is 6628423. The next prime is 6628477. The reversal of 6628426 is 6248266.

It is a junction number, because it is equal to n+sod(n) for n = 6628391 and 6628400.

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 11 ways as a sum of consecutive naturals, for example, 23281 + ... + 23563.

It is an arithmetic number, because the mean of its divisors is an integer number (485640).

Almost surely, 2^6628426 is an apocalyptic number.

6628426 is a deficient number, since it is larger than the sum of its proper divisors (5026934).

6628426 is a wasteful number, since it uses less digits than its factorization.

6628426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 531 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 6628426 is about 2574.5729743008. The cubic root of 6628426 is about 187.8466570628.

The spelling of 6628426 in words is "six million, six hundred twenty-eight thousand, four hundred twenty-six".