744615740 has 24 divisors (see below), whose sum is σ = 1705847472. Its totient is φ = 270769280.

The previous prime is 744615721. The next prime is 744615743. The reversal of 744615740 is 47516447.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 744615694 and 744615703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744615743) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1692089 + ... + 1692528.

It is an arithmetic number, because the mean of its divisors is an integer number (71076978).

Almost surely, 2^744615740 is an apocalyptic number.

It is an amenable number.

744615740 is an abundant number, since it is smaller than the sum of its proper divisors (961231732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

744615740 is a wasteful number, since it uses less digits than its factorization.

744615740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384637 (or 3384635 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 744615740 is about 27287.6481214486. The cubic root of 744615740 is about 906.3808838946.

The spelling of 744615740 in words is "seven hundred forty-four million, six hundred fifteen thousand, seven hundred forty".