6320440 has 32 divisors (see below), whose sum is σ = 16253280. Its totient is φ = 2166912.

The previous prime is 6320417. The next prime is 6320459. The reversal of 6320440 is 440236.

It is a nialpdrome in base 14.

It is a congruent number.

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, 11007 + ... + 11566.

It is an arithmetic number, because the mean of its divisors is an integer number (507915).

Almost surely, 2^6320440 is an apocalyptic number.

It is an amenable number.

6320440 is an abundant number, since it is smaller than the sum of its proper divisors (9932840).

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

6320440 is a wasteful number, since it uses less digits than its factorization.

6320440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22591 (or 22587 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 6320440 is about 2514.0485277735. The cubic root of 6320440 is about 184.8909998278.

Adding to 6320440 its reverse (440236), we get a palindrome (6760676).

It can be divided in two parts, 63 and 20440, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 6320440 in words is "six million, three hundred twenty thousand, four hundred forty".