6390336 has 56 divisors (see below), whose sum is σ = 17154144. Its totient is φ = 2099200.

The previous prime is 6390313. The next prime is 6390337. The reversal of 6390336 is 6330936.

It is not an unprimeable number, because it can be changed into a prime (6390337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15736 + ... + 16136.

It is an arithmetic number, because the mean of its divisors is an integer number (306324).

Almost surely, 2^6390336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6390336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8577072).

6390336 is an abundant number, since it is smaller than the sum of its proper divisors (10763808).

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

6390336 is a wasteful number, since it uses less digits than its factorization.

6390336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 30.

The square root of 6390336 is about 2527.9113908521. The cubic root of 6390336 is about 185.5700556130.

The spelling of 6390336 in words is "six million, three hundred ninety thousand, three hundred thirty-six".