6438264 has 64 divisors (see below), whose sum is σ = 19372800. Its totient is φ = 1741824.

The previous prime is 6438253. The next prime is 6438269. The reversal of 6438264 is 4628346.

6438264 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6438269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2184 + ... + 4200.

It is an arithmetic number, because the mean of its divisors is an integer number (302700).

Almost surely, 2^6438264 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 6438264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9686400).

6438264 is an abundant number, since it is smaller than the sum of its proper divisors (12934536).

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

6438264 is a wasteful number, since it uses less digits than its factorization.

6438264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052 (or 2048 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 6438264 is about 2537.3734451200. The cubic root of 6438264 is about 186.0328303709.

It can be divided in two parts, 64382 and 64, that added together give a palindrome (64446).

The spelling of 6438264 in words is "six million, four hundred thirty-eight thousand, two hundred sixty-four".