6439368 has 32 divisors (see below), whose sum is σ = 17337600. Its totient is φ = 1981248.

The previous prime is 6439357. The next prime is 6439397. The reversal of 6439368 is 8639346.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10008 + ... + 10631.

It is an arithmetic number, because the mean of its divisors is an integer number (541800).

Almost surely, 2^6439368 is an apocalyptic number.

It is an amenable number.

6439368 is an abundant number, since it is smaller than the sum of its proper divisors (10898232).

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

6439368 is a wasteful number, since it uses less digits than its factorization.

6439368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20661 (or 20657 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 6439368 is about 2537.5909835905. The cubic root of 6439368 is about 186.0434630770.

It can be divided in two parts, 643 and 9368, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 6439368 in words is "six million, four hundred thirty-nine thousand, three hundred sixty-eight".