4327321320 has 480 divisors, whose sum is σ = 17154494280. Its totient is φ = 975421440.

The previous prime is 4327321309. The next prime is 4327321337. The reversal of 4327321320 is 231237234.

It can be written as a sum of positive squares in 4 ways, for example, as 3673087236 + 654234084 = 60606^2 + 25578^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 15399580 + ... + 15399860.

Almost surely, 2^4327321320 is an apocalyptic number.

4327321320 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 4327321320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8577247140).

4327321320 is an abundant number, since it is smaller than the sum of its proper divisors (12827172960).

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

4327321320 is a wasteful number, since it uses less digits than its factorization.

4327321320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 4327321320 is about 65782.3784915079. The cubic root of 4327321320 is about 1629.5701025443.

Adding to 4327321320 its reverse (231237234), we get a palindrome (4558558554).

The spelling of 4327321320 in words is "four billion, three hundred twenty-seven million, three hundred twenty-one thousand, three hundred twenty".