728843830 has 32 divisors (see below), whose sum is σ = 1541278368. Its totient is φ = 244646400.

The previous prime is 728843827. The next prime is 728843861. The reversal of 728843830 is 38348827.

728843830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253411 + ... + 256270.

It is an arithmetic number, because the mean of its divisors is an integer number (48164949).

Almost surely, 2^728843830 is an apocalyptic number.

728843830 is an abundant number, since it is smaller than the sum of its proper divisors (812434538).

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

728843830 is a wasteful number, since it uses less digits than its factorization.

728843830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509712.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 728843830 is about 26997.1078080597. The cubic root of 728843830 is about 899.9357279205.

The spelling of 728843830 in words is "seven hundred twenty-eight million, eight hundred forty-three thousand, eight hundred thirty".