729443224 has 16 divisors (see below), whose sum is σ = 1368338400. Its totient is φ = 364552992.

The previous prime is 729443203. The next prime is 729443251. The reversal of 729443224 is 422344927.

It is a congruent number.

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, 1639 + ... + 38230.

It is an arithmetic number, because the mean of its divisors is an integer number (85521150).

Almost surely, 2^729443224 is an apocalyptic number.

It is an amenable number.

729443224 is a deficient number, since it is larger than the sum of its proper divisors (638895176).

729443224 is a wasteful number, since it uses less digits than its factorization.

729443224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42162 (or 42158 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 729443224 is about 27008.2066046600. The cubic root of 729443224 is about 900.1823597552.

The spelling of 729443224 in words is "seven hundred twenty-nine million, four hundred forty-three thousand, two hundred twenty-four".