728336328 has 32 divisors (see below), whose sum is σ = 1825934400. Its totient is φ = 242099648.

The previous prime is 728336327. The next prime is 728336333. The reversal of 728336328 is 823633827.

728336328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×728336328³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 728336328.

It is not an unprimeable number, because it can be changed into a prime (728336327) 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, 33651 + ... + 50882.

It is an arithmetic number, because the mean of its divisors is an integer number (57060450).

Almost surely, 2^728336328 is an apocalyptic number.

It is an amenable number.

728336328 is an abundant number, since it is smaller than the sum of its proper divisors (1097598072).

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

728336328 is a wasteful number, since it uses less digits than its factorization.

728336328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84901 (or 84897 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 728336328 is about 26987.7069792897. The cubic root of 728336328 is about 899.7268010283.

The spelling of 728336328 in words is "seven hundred twenty-eight million, three hundred thirty-six thousand, three hundred twenty-eight".