728025236 has 6 divisors (see below), whose sum is σ = 1274044170. Its totient is φ = 364012616.

The previous prime is 728025227. The next prime is 728025247. The reversal of 728025236 is 632520827.

It can be written as a sum of positive squares in only one way, i.e., 382437136 + 345588100 = 19556^2 + 18590^2 .

It is a junction number, because it is equal to n+sod(n) for n = 728025196 and 728025205.

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 as a sum of consecutive naturals, namely, 91003151 + ... + 91003158.

It is an arithmetic number, because the mean of its divisors is an integer number (212340695).

Almost surely, 2^728025236 is an apocalyptic number.

It is an amenable number.

728025236 is a deficient number, since it is larger than the sum of its proper divisors (546018934).

728025236 is a wasteful number, since it uses less digits than its factorization.

728025236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182006313 (or 182006311 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 728025236 is about 26981.9427766052. The cubic root of 728025236 is about 899.5986836282.

The spelling of 728025236 in words is "seven hundred twenty-eight million, twenty-five thousand, two hundred thirty-six".