728009050 has 12 divisors (see below), whose sum is σ = 1354096926. Its totient is φ = 291203600.

The previous prime is 728009039. The next prime is 728009099. The reversal of 728009050 is 50900827.

It can be written as a sum of positive squares in 3 ways, for example, as 561263481 + 166745569 = 23691^2 + 12913^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7280041 + ... + 7280140.

Almost surely, 2^728009050 is an apocalyptic number.

728009050 is a deficient number, since it is larger than the sum of its proper divisors (626087876).

728009050 is a wasteful number, since it uses less digits than its factorization.

728009050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14560193 (or 14560188 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 728009050 is about 26981.6428336008. The cubic root of 728009050 is about 899.5920167292.

Adding to 728009050 its reverse (50900827), we get a palindrome (778909877).

The spelling of 728009050 in words is "seven hundred twenty-eight million, nine thousand, fifty".