6438368 has 24 divisors (see below), whose sum is σ = 12759768. Its totient is φ = 3197824.

The previous prime is 6438361. The next prime is 6438373. The reversal of 6438368 is 8638346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6438361) 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, 4955 + ... + 6117.

It is an arithmetic number, because the mean of its divisors is an integer number (531657).

Almost surely, 2^6438368 is an apocalyptic number.

It is an amenable number.

6438368 is a deficient number, since it is larger than the sum of its proper divisors (6321400).

6438368 is a wasteful number, since it uses less digits than its factorization.

6438368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1338 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 6438368 is about 2537.3939386701. The cubic root of 6438368 is about 186.0338320545.

The spelling of 6438368 in words is "six million, four hundred thirty-eight thousand, three hundred sixty-eight".