6620344 has 16 divisors (see below), whose sum is σ = 13143600. Its totient is φ = 3115392.

The previous prime is 6620309. The next prime is 6620351. The reversal of 6620344 is 4430266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24204 + ... + 24475.

It is an arithmetic number, because the mean of its divisors is an integer number (821475).

Almost surely, 2^6620344 is an apocalyptic number.

It is an amenable number.

6620344 is a deficient number, since it is larger than the sum of its proper divisors (6523256).

6620344 is a wasteful number, since it uses less digits than its factorization.

6620344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48702 (or 48698 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 6620344 is about 2573.0029148837. The cubic root of 6620344 is about 187.7702792452.

The spelling of 6620344 in words is "six million, six hundred twenty thousand, three hundred forty-four".