4505724756 has 72 divisors (see below), whose sum is σ = 12284565384. Its totient is φ = 1384231680.

The previous prime is 4505724731. The next prime is 4505724757. The reversal of 4505724756 is 6574275054.

4505724756 is a `hidden beast` number, since 4 + 5 + 0 + 572 + 4 + 75 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1634908356 + 2870816400 = 40434^2 + 53580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4505724757) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 309726 + ... + 323946.

Almost surely, 2^4505724756 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 4505724756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6142282692).

4505724756 is an abundant number, since it is smaller than the sum of its proper divisors (7778840628).

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

4505724756 is a wasteful number, since it uses less digits than its factorization.

4505724756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921 (or 14916 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The square root of 4505724756 is about 67124.6955747287. The cubic root of 4505724756 is about 1651.6634288056.

The spelling of 4505724756 in words is "four billion, five hundred five million, seven hundred twenty-four thousand, seven hundred fifty-six".