729347330 has 16 divisors (see below), whose sum is σ = 1348307640. Its totient is φ = 283853952.

The previous prime is 729347329. The next prime is 729347341. The reversal of 729347330 is 33743927.

It is a happy number.

729347330 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 4 ways, for example, as 727003369 + 2343961 = 26963^2 + 1531^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985235 + ... + 985974.

Almost surely, 2^729347330 is an apocalyptic number.

729347330 is a deficient number, since it is larger than the sum of its proper divisors (618960310).

729347330 is a wasteful number, since it uses less digits than its factorization.

729347330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971253.

The product of its (nonzero) digits is 95256, while the sum is 38.

The square root of 729347330 is about 27006.4312710880. The cubic root of 729347330 is about 900.1429114622.

The spelling of 729347330 in words is "seven hundred twenty-nine million, three hundred forty-seven thousand, three hundred thirty".