728081872 has 40 divisors (see below), whose sum is σ = 1664195072. Its totient is φ = 301968000.

The previous prime is 728081867. The next prime is 728081873. The reversal of 728081872 is 278180827.

728081872 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 not an unprimeable number, because it can be changed into a prime (728081873) 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, 101379 + ... + 108322.

Almost surely, 2^728081872 is an apocalyptic number.

It is an amenable number.

728081872 is an abundant number, since it is smaller than the sum of its proper divisors (936113200).

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

728081872 is a wasteful number, since it uses less digits than its factorization.

728081872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209747 (or 209741 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 728081872 is about 26982.9922729115. The cubic root of 728081872 is about 899.6220108186.

The spelling of 728081872 in words is "seven hundred twenty-eight million, eighty-one thousand, eight hundred seventy-two".