4320309420 has 576 divisors, whose sum is σ = 16915046400. Its totient is φ = 910103040.

The previous prime is 4320309407. The next prime is 4320309421. The reversal of 4320309420 is 249030234.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320309421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 18865866 + ... + 18866094.

It is an arithmetic number, because the mean of its divisors is an integer number (29366400).

Almost surely, 2^4320309420 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 4320309420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8457523200).

4320309420 is an abundant number, since it is smaller than the sum of its proper divisors (12594736980).

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

4320309420 is a wasteful number, since it uses less digits than its factorization.

4320309420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 4320309420 is about 65729.0606961639. The cubic root of 4320309420 is about 1628.6894530610.

Adding to 4320309420 its reverse (249030234), we get a palindrome (4569339654).

The spelling of 4320309420 in words is "four billion, three hundred twenty million, three hundred nine thousand, four hundred twenty".