4502730728 has 16 divisors (see below), whose sum is σ = 8455174980. Its totient is φ = 2248017408.

The previous prime is 4502730719. The next prime is 4502730761. The reversal of 4502730728 is 8270372054.

It can be written as a sum of positive squares in 2 ways, for example, as 4475877604 + 26853124 = 66902^2 + 5182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4502730691 and 4502730700.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412775 + ... + 423542.

Almost surely, 2^4502730728 is an apocalyptic number.

It is an amenable number.

4502730728 is a deficient number, since it is larger than the sum of its proper divisors (3952444252).

4502730728 is a wasteful number, since it uses less digits than its factorization.

4502730728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836996 (or 836992 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 4502730728 is about 67102.3898829244. The cubic root of 4502730728 is about 1651.2975074825.

The spelling of 4502730728 in words is "four billion, five hundred two million, seven hundred thirty thousand, seven hundred twenty-eight".