6400604 has 12 divisors (see below), whose sum is σ = 12801264. Its totient is φ = 2743104.

The previous prime is 6400591. The next prime is 6400607. The reversal of 6400604 is 4060046.

6400604 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114269 + ... + 114324.

It is an arithmetic number, because the mean of its divisors is an integer number (1066772).

Almost surely, 2^6400604 is an apocalyptic number.

It is an amenable number.

6400604 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6400604 is a wasteful number, since it uses less digits than its factorization.

6400604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228604 (or 228602 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 6400604 is about 2529.9415013000. The cubic root of 6400604 is about 185.6693938267.

The spelling of 6400604 in words is "six million, four hundred thousand, six hundred four".