728446208 has 36 divisors (see below), whose sum is σ = 1661772000. Its totient is φ = 312190464.

The previous prime is 728446193. The next prime is 728446231. The reversal of 728446208 is 802644827.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201458 + ... + 205041.

Almost surely, 2^728446208 is an apocalyptic number.

It is an amenable number.

728446208 is an abundant number, since it is smaller than the sum of its proper divisors (933325792).

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

728446208 is an equidigital number, since it uses as much as digits as its factorization.

728446208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406522 (or 406508 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 728446208 is about 26989.7426441973. The cubic root of 728446208 is about 899.7720443249.

The spelling of 728446208 in words is "seven hundred twenty-eight million, four hundred forty-six thousand, two hundred eight".