728308026 has 24 divisors (see below), whose sum is σ = 1579241664. Its totient is φ = 242578440.

The previous prime is 728307971. The next prime is 728308039. The reversal of 728308026 is 620803827.

It is a happy number.

728308026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8641 + ... + 39131.

It is an arithmetic number, because the mean of its divisors is an integer number (65801736).

Almost surely, 2^728308026 is an apocalyptic number.

728308026 is an abundant number, since it is smaller than the sum of its proper divisors (850933638).

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

728308026 is a wasteful number, since it uses less digits than its factorization.

728308026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31826 (or 31823 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 728308026 is about 26987.1826243497. The cubic root of 728308026 is about 899.7151468896.

The spelling of 728308026 in words is "seven hundred twenty-eight million, three hundred eight thousand, twenty-six".