6404440404 has 24 divisors (see below), whose sum is σ = 14953548960. Its totient is φ = 2133405664.

The previous prime is 6404440403. The next prime is 6404440411. The reversal of 6404440404 is 4040444046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404440403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156939 + ... + 193490.

It is an arithmetic number, because the mean of its divisors is an integer number (623064540).

Almost surely, 2^6404440404 is an apocalyptic number.

It is an amenable number.

6404440404 is an abundant number, since it is smaller than the sum of its proper divisors (8549108556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6404440404 is a wasteful number, since it uses less digits than its factorization.

6404440404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351959 (or 351957 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 6404440404 is about 80027.7477129027. The cubic root of 6404440404 is about 1857.0648202126.

The spelling of 6404440404 in words is "six billion, four hundred four million, four hundred forty thousand, four hundred four".