4520265728 has 288 divisors, whose sum is σ = 11175910200. Its totient is φ = 1816657920.

The previous prime is 4520265727. The next prime is 4520265731. The reversal of 4520265728 is 8275620254.

It can be written as a sum of positive squares in 4 ways, for example, as 4520141824 + 123904 = 67232^2 + 352^2 .

It is not an unprimeable number, because it can be changed into a prime (4520265721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122169326 + ... + 122169362.

Almost surely, 2^4520265728 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 4520265728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5587955100).

4520265728 is an abundant number, since it is smaller than the sum of its proper divisors (6655644472).

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

4520265728 is a wasteful number, since it uses less digits than its factorization.

4520265728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 4520265728 is about 67232.9214596540. The cubic root of 4520265728 is about 1653.4382821575.

It can be divided in two parts, 452026 and 5728, that added together give a palindrome (457754).

The spelling of 4520265728 in words is "four billion, five hundred twenty million, two hundred sixty-five thousand, seven hundred twenty-eight".