6404384 has 24 divisors (see below), whose sum is σ = 14410368. Its totient is φ = 2744640.

The previous prime is 6404381. The next prime is 6404401. The reversal of 6404384 is 4834046.

It is a super-2 number, since 2×6404384² = 82032268838912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6404381) 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, 14072 + ... + 14519.

It is an arithmetic number, because the mean of its divisors is an integer number (600432).

Almost surely, 2^6404384 is an apocalyptic number.

It is an amenable number.

6404384 is an abundant number, since it is smaller than the sum of its proper divisors (8005984).

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

6404384 is a wasteful number, since it uses less digits than its factorization.

6404384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28608 (or 28600 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 6404384 is about 2530.6884438824. The cubic root of 6404384 is about 185.7059368464.

The spelling of 6404384 in words is "six million, four hundred four thousand, three hundred eighty-four".