6626444 has 18 divisors (see below), whose sum is σ = 12747252. Its totient is φ = 3011800.

The previous prime is 6626443. The next prime is 6626453. The reversal of 6626444 is 4446266.

It is a self number, because there is not a number n which added to its sum of digits gives 6626444.

It is not an unprimeable number, because it can be changed into a prime (6626443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6362 + ... + 7329.

Almost surely, 2^6626444 is an apocalyptic number.

It is an amenable number.

6626444 is a deficient number, since it is larger than the sum of its proper divisors (6120808).

6626444 is a wasteful number, since it uses less digits than its factorization.

6626444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13717 (or 13704 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 6626444 is about 2574.1880273205. The cubic root of 6626444 is about 187.8279321956.

The spelling of 6626444 in words is "six million, six hundred twenty-six thousand, four hundred forty-four".