728347248 has 40 divisors (see below), whose sum is σ = 2090627600. Its totient is φ = 242782272.

The previous prime is 728347237. The next prime is 728347283. The reversal of 728347248 is 842743827.

728347248 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 7 ways as a sum of consecutive naturals, for example, 842563 + ... + 843426.

It is an arithmetic number, because the mean of its divisors is an integer number (52265690).

Almost surely, 2^728347248 is an apocalyptic number.

It is an amenable number.

728347248 is an abundant number, since it is smaller than the sum of its proper divisors (1362280352).

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

728347248 is a wasteful number, since it uses less digits than its factorization.

728347248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686006 (or 1685994 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 728347248 is about 26987.9092928667. The cubic root of 728347248 is about 899.7312975624.

The spelling of 728347248 in words is "seven hundred twenty-eight million, three hundred forty-seven thousand, two hundred forty-eight".