6396404 has 12 divisors (see below), whose sum is σ = 12792864. Its totient is φ = 2741304.

The previous prime is 6396389. The next prime is 6396409. The reversal of 6396404 is 4046936.

6396404 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6396409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114194 + ... + 114249.

It is an arithmetic number, because the mean of its divisors is an integer number (1066072).

Almost surely, 2^6396404 is an apocalyptic number.

It is an amenable number.

6396404 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.

6396404 is a wasteful number, since it uses less digits than its factorization.

6396404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228454 (or 228452 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 6396404 is about 2529.1113063683. Note that the first 3 decimals coincide. The cubic root of 6396404 is about 185.6287735934.

The spelling of 6396404 in words is "six million, three hundred ninety-six thousand, four hundred four".