6405004 has 12 divisors (see below), whose sum is σ = 11351200. Its totient is φ = 3161808.

The previous prime is 6404987. The next prime is 6405011. The reversal of 6405004 is 4005046.

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, 9819 + ... + 10450.

Almost surely, 2^6405004 is an apocalyptic number.

It is an amenable number.

6405004 is a deficient number, since it is larger than the sum of its proper divisors (4946196).

6405004 is a wasteful number, since it uses less digits than its factorization.

6405004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20352 (or 20350 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 6405004 is about 2530.8109372294. The cubic root of 6405004 is about 185.7119293023.

The spelling of 6405004 in words is "six million, four hundred five thousand, four".