6404044 has 12 divisors (see below), whose sum is σ = 11226600. Its totient is φ = 3196448.

The previous prime is 6404023. The next prime is 6404059. The reversal of 6404044 is 4404046.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2247 + ... + 4225.

It is an arithmetic number, because the mean of its divisors is an integer number (935550).

Almost surely, 2^6404044 is an apocalyptic number.

It is an amenable number.

6404044 is a deficient number, since it is larger than the sum of its proper divisors (4822556).

6404044 is a wasteful number, since it uses less digits than its factorization.

6404044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792 (or 2790 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 6404044 is about 2530.6212675942. The cubic root of 6404044 is about 185.7026504968.

The spelling of 6404044 in words is "six million, four hundred four thousand, forty-four".