9241730728 has 16 divisors (see below), whose sum is σ = 17341833780. Its totient is φ = 4617241728.

The previous prime is 9241730713. The next prime is 9241730749. The reversal of 9241730728 is 8270371429.

9241730728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7896455044 + 1345275684 = 88862^2 + 36678^2 .

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, 442101 + ... + 462532.

Almost surely, 2^9241730728 is an apocalyptic number.

It is an amenable number.

9241730728 is a deficient number, since it is larger than the sum of its proper divisors (8100103052).

9241730728 is a wasteful number, since it uses less digits than its factorization.

9241730728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905916 (or 905912 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 9241730728 is about 96133.9207980201. The cubic root of 9241730728 is about 2098.5425055229.

The spelling of 9241730728 in words is "nine billion, two hundred forty-one million, seven hundred thirty thousand, seven hundred twenty-eight".