6438828 has 24 divisors (see below), whose sum is σ = 16390080. Its totient is φ = 1951120.

The previous prime is 6438799. The next prime is 6438829. The reversal of 6438828 is 8288346.

It is not an unprimeable number, because it can be changed into a prime (6438829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24258 + ... + 24521.

It is an arithmetic number, because the mean of its divisors is an integer number (682920).

Almost surely, 2^6438828 is an apocalyptic number.

It is an amenable number.

6438828 is an abundant number, since it is smaller than the sum of its proper divisors (9951252).

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

6438828 is a wasteful number, since it uses less digits than its factorization.

6438828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48797 (or 48795 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 6438828 is about 2537.4845812339. The cubic root of 6438828 is about 186.0382624487.

It can be divided in two parts, 6 and 438828, that added together give a palindrome (438834).

The spelling of 6438828 in words is "six million, four hundred thirty-eight thousand, eight hundred twenty-eight".