744721318 has 16 divisors (see below), whose sum is σ = 1233320256. Its totient is φ = 334430440.

The previous prime is 744721309. The next prime is 744721361. The reversal of 744721318 is 813127447.

744721318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 202096 + ... + 205747.

It is an arithmetic number, because the mean of its divisors is an integer number (77082516).

Almost surely, 2^744721318 is an apocalyptic number.

744721318 is a deficient number, since it is larger than the sum of its proper divisors (488598938).

744721318 is a wasteful number, since it uses less digits than its factorization.

744721318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407939.

The product of its digits is 37632, while the sum is 37.

The square root of 744721318 is about 27289.5825911647. The cubic root of 744721318 is about 906.4237200195.

The spelling of 744721318 in words is "seven hundred forty-four million, seven hundred twenty-one thousand, three hundred eighteen".