744407648 has 24 divisors (see below), whose sum is σ = 1466706528. Its totient is φ = 371910784.

The previous prime is 744407647. The next prime is 744407687. The reversal of 744407648 is 846704447.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 744407599 and 744407608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744407647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35465 + ... + 52407.

It is an arithmetic number, because the mean of its divisors is an integer number (61112772).

Almost surely, 2^744407648 is an apocalyptic number.

It is an amenable number.

744407648 is a deficient number, since it is larger than the sum of its proper divisors (722298880).

744407648 is a wasteful number, since it uses less digits than its factorization.

744407648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18326 (or 18318 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 44.

The square root of 744407648 is about 27283.8349210664. The cubic root of 744407648 is about 906.2964429437.

The spelling of 744407648 in words is "seven hundred forty-four million, four hundred seven thousand, six hundred forty-eight".