729444365 has 16 divisors (see below), whose sum is σ = 952393008. Its totient is φ = 533108736.

The previous prime is 729444361. The next prime is 729444377. The reversal of 729444365 is 563444927.

729444365 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 8 ways, for example, as 284192164 + 445252201 = 16858^2 + 21101^2 .

It is a cyclic number.

It is not a de Polignac number, because 729444365 - 2² = 729444361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729444361) 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, 51542 + ... + 64151.

It is an arithmetic number, because the mean of its divisors is an integer number (59524563).

Almost surely, 2^729444365 is an apocalyptic number.

It is an amenable number.

729444365 is a deficient number, since it is larger than the sum of its proper divisors (222948643).

729444365 is a wasteful number, since it uses less digits than its factorization.

729444365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115808.

The product of its digits is 725760, while the sum is 44.

The square root of 729444365 is about 27008.2277278610. The cubic root of 729444365 is about 900.1828291121.

The spelling of 729444365 in words is "seven hundred twenty-nine million, four hundred forty-four thousand, three hundred sixty-five".