744157972 has 6 divisors (see below), whose sum is σ = 1302276458. Its totient is φ = 372078984.

The previous prime is 744157961. The next prime is 744157987. The reversal of 744157972 is 279751447.

744157972 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 only one way, i.e., 597118096 + 147039876 = 24436^2 + 12126^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93019743 + ... + 93019750.

Almost surely, 2^744157972 is an apocalyptic number.

It is an amenable number.

744157972 is a deficient number, since it is larger than the sum of its proper divisors (558118486).

744157972 is a wasteful number, since it uses less digits than its factorization.

744157972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186039497 (or 186039495 counting only the distinct ones).

The product of its digits is 493920, while the sum is 46.

The square root of 744157972 is about 27279.2590075317. The cubic root of 744157972 is about 906.1951069914.

The spelling of 744157972 in words is "seven hundred forty-four million, one hundred fifty-seven thousand, nine hundred seventy-two".