729224306 has 16 divisors (see below), whose sum is σ = 1114318080. Its totient is φ = 357806640.

The previous prime is 729224303. The next prime is 729224311. The reversal of 729224306 is 603422927.

It is a happy number.

It is a super-3 number, since 3×729224306³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (729224303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66536 + ... + 76716.

It is an arithmetic number, because the mean of its divisors is an integer number (69644880).

Almost surely, 2^729224306 is an apocalyptic number.

729224306 is a deficient number, since it is larger than the sum of its proper divisors (385093774).

729224306 is a wasteful number, since it uses less digits than its factorization.

729224306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10849.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 729224306 is about 27004.1534953422. The cubic root of 729224306 is about 900.0922975302.

The spelling of 729224306 in words is "seven hundred twenty-nine million, two hundred twenty-four thousand, three hundred six".