6630844 has 24 divisors (see below), whose sum is σ = 13004208. Its totient is φ = 2931840.

The previous prime is 6630839. The next prime is 6630847. The reversal of 6630844 is 4480366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409 + ... + 3664.

It is an arithmetic number, because the mean of its divisors is an integer number (541842).

Almost surely, 2^6630844 is an apocalyptic number.

It is an amenable number.

6630844 is a deficient number, since it is larger than the sum of its proper divisors (6373364).

6630844 is a wasteful number, since it uses less digits than its factorization.

6630844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125 (or 4123 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 6630844 is about 2575.0425239207. The cubic root of 6630844 is about 187.8694959688.

The spelling of 6630844 in words is "six million, six hundred thirty thousand, eight hundred forty-four".