4320727920 has 400 divisors, whose sum is σ = 15703066368. Its totient is φ = 1099837440.

The previous prime is 4320727919. The next prime is 4320727963. The reversal of 4320727920 is 297270234.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 27520482 + ... + 27520638.

Almost surely, 2^4320727920 is an apocalyptic number.

4320727920 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 4320727920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7851533184).

4320727920 is an abundant number, since it is smaller than the sum of its proper divisors (11382338448).

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

4320727920 is a wasteful number, since it uses less digits than its factorization.

4320727920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 4320727920 is about 65732.2441424298. The cubic root of 4320727920 is about 1628.7420406932.

The spelling of 4320727920 in words is "four billion, three hundred twenty million, seven hundred twenty-seven thousand, nine hundred twenty".