744221216740 has 48 divisors (see below), whose sum is σ = 1567246432752. Its totient is φ = 296854992896.

The previous prime is 744221216671. The next prime is 744221216741. The reversal of 744221216740 is 47612122447.

744221216740 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 8 ways, for example, as 162299402496 + 581921814244 = 402864^2 + 762838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 744221216693 and 744221216702.

It is not an unprimeable number, because it can be changed into a prime (744221216741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10540194 + ... + 10610566.

It is an arithmetic number, because the mean of its divisors is an integer number (32650967349).

Almost surely, 2^744221216740 is an apocalyptic number.

It is an amenable number.

744221216740 is an abundant number, since it is smaller than the sum of its proper divisors (823025216012).

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

744221216740 is a wasteful number, since it uses less digits than its factorization.

744221216740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71856 (or 71854 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The spelling of 744221216740 in words is "seven hundred forty-four billion, two hundred twenty-one million, two hundred sixteen thousand, seven hundred forty".