5730640728 has 32 divisors (see below), whose sum is σ = 14389177200. Its totient is φ = 1901870208.

The previous prime is 5730640723. The next prime is 5730640733. The reversal of 5730640728 is 8270460375.

It is an interprime number because it is at equal distance from previous prime (5730640723) and next prime (5730640733).

It is a self number, because there is not a number n which added to its sum of digits gives 5730640728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5730640723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515851 + ... + 526842.

Almost surely, 2^5730640728 is an apocalyptic number.

It is an amenable number.

5730640728 is an abundant number, since it is smaller than the sum of its proper divisors (8658536472).

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

5730640728 is a wasteful number, since it uses less digits than its factorization.

5730640728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042931 (or 1042927 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 5730640728 is about 75700.9955548803. The cubic root of 5730640728 is about 1789.5110893862.

The spelling of 5730640728 in words is "five billion, seven hundred thirty million, six hundred forty thousand, seven hundred twenty-eight".