728843450 has 48 divisors (see below), whose sum is σ = 1383869760. Its totient is φ = 285534720.

The previous prime is 728843443. The next prime is 728843503. The reversal of 728843450 is 54348827.

728843450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 728843398 and 728843407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498821 + ... + 500279.

It is an arithmetic number, because the mean of its divisors is an integer number (28830620).

Almost surely, 2^728843450 is an apocalyptic number.

728843450 is a deficient number, since it is larger than the sum of its proper divisors (655026310).

728843450 is a wasteful number, since it uses less digits than its factorization.

728843450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 728843450 is about 26997.1007702679. The cubic root of 728843450 is about 899.9355715195.

The spelling of 728843450 in words is "seven hundred twenty-eight million, eight hundred forty-three thousand, four hundred fifty".