729223306 has 32 divisors (see below), whose sum is σ = 1351474560. Its totient is φ = 288069696.

The previous prime is 729223289. The next prime is 729223307. The reversal of 729223306 is 603322927.

It is not an unprimeable number, because it can be changed into a prime (729223307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27205 + ... + 46888.

It is an arithmetic number, because the mean of its divisors is an integer number (42233580).

Almost surely, 2^729223306 is an apocalyptic number.

729223306 is a deficient number, since it is larger than the sum of its proper divisors (622251254).

729223306 is a wasteful number, since it uses less digits than its factorization.

729223306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74158.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 729223306 is about 27004.1349796656. The cubic root of 729223306 is about 900.0918860918.

The spelling of 729223306 in words is "seven hundred twenty-nine million, two hundred twenty-three thousand, three hundred six".