4320528768 has 256 divisors, whose sum is σ = 13250534400. Its totient is φ = 1384998912.

The previous prime is 4320528749. The next prime is 4320528809. The reversal of 4320528768 is 8678250234.

4320528768 is a `hidden beast` number, since 43 + 20 + 528 + 7 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10882746 + ... + 10883142.

It is an arithmetic number, because the mean of its divisors is an integer number (51759900).

Almost surely, 2^4320528768 is an apocalyptic number.

4320528768 is a gapful number since it is divisible by the number (48) 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 4320528768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6625267200).

4320528768 is an abundant number, since it is smaller than the sum of its proper divisors (8930005632).

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

4320528768 is a wasteful number, since it uses less digits than its factorization.

4320528768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 4320528768 is about 65730.7292520021. The cubic root of 4320528768 is about 1628.7170161893.

The spelling of 4320528768 in words is "four billion, three hundred twenty million, five hundred twenty-eight thousand, seven hundred sixty-eight".