6324440 has 32 divisors (see below), whose sum is σ = 14564880. Its totient is φ = 2470272.

The previous prime is 6324433. The next prime is 6324443. The reversal of 6324440 is 444236.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6324443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119 + ... + 3558.

Almost surely, 2^6324440 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 6324440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7282440).

6324440 is an abundant number, since it is smaller than the sum of its proper divisors (8240440).

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

6324440 is a wasteful number, since it uses less digits than its factorization.

6324440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731 (or 3727 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 6324440 is about 2514.8439315393. The cubic root of 6324440 is about 184.9299954272.

Adding to 6324440 its reverse (444236), we get a palindrome (6768676).

The spelling of 6324440 in words is "six million, three hundred twenty-four thousand, four hundred forty".