728225336 has 16 divisors (see below), whose sum is σ = 1377507600. Its totient is φ = 360889984.

The previous prime is 728225291. The next prime is 728225359. The reversal of 728225336 is 633522827.

It is a self number, because there is not a number n which added to its sum of digits gives 728225336.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401876 + ... + 403683.

It is an arithmetic number, because the mean of its divisors is an integer number (86094225).

Almost surely, 2^728225336 is an apocalyptic number.

It is an amenable number.

728225336 is a deficient number, since it is larger than the sum of its proper divisors (649282264).

728225336 is a wasteful number, since it uses less digits than its factorization.

728225336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805678 (or 805674 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 728225336 is about 26985.6505572869. The cubic root of 728225336 is about 899.6810952435.

The spelling of 728225336 in words is "seven hundred twenty-eight million, two hundred twenty-five thousand, three hundred thirty-six".