4321344320 has 56 divisors (see below), whose sum is σ = 10328379648. Its totient is φ = 1722124800.

The previous prime is 4321344301. The next prime is 4321344329. The reversal of 4321344320 is 234431234.

It is a self number, because there is not a number n which added to its sum of digits gives 4321344320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321344329) 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, 61805 + ... + 111635.

Almost surely, 2^4321344320 is an apocalyptic number.

4321344320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4321344320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5164189824).

4321344320 is an abundant number, since it is smaller than the sum of its proper divisors (6007035328).

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

4321344320 is a wasteful number, since it uses less digits than its factorization.

4321344320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50119 (or 50109 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 4321344320 is about 65736.9326938822. The cubic root of 4321344320 is about 1628.8194897461.

Adding to 4321344320 its reverse (234431234), we get a palindrome (4555775554).

The spelling of 4321344320 in words is "four billion, three hundred twenty-one million, three hundred forty-four thousand, three hundred twenty".