5728806540 has 144 divisors (see below), whose sum is σ = 18933549600. Its totient is φ = 1437778944.

The previous prime is 5728806529. The next prime is 5728806553. The reversal of 5728806540 is 456088275.

5728806540 is a `hidden beast` number, since 5 + 7 + 28 + 80 + 6 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 137706 + ... + 174414.

Almost surely, 2^5728806540 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 5728806540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9466774800).

5728806540 is an abundant number, since it is smaller than the sum of its proper divisors (13204743060).

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

5728806540 is a wasteful number, since it uses less digits than its factorization.

5728806540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36761 (or 36736 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 5728806540 is about 75688.8798965872. The cubic root of 5728806540 is about 1789.3201479674.

The spelling of 5728806540 in words is "five billion, seven hundred twenty-eight million, eight hundred six thousand, five hundred forty".