744311947440 has 80 divisors (see below), whose sum is σ = 2369728336608. Its totient is φ = 193118773248.

The previous prime is 744311947387. The next prime is 744311947447. The reversal of 744311947440 is 44749113447.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 744311947440.

It is not an unprimeable number, because it can be changed into a prime (744311947447) 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, 41900577 + ... + 41918336.

Almost surely, 2^744311947440 is an apocalyptic number.

It is an amenable number.

744311947440 is an abundant number, since it is smaller than the sum of its proper divisors (1625416389168).

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

744311947440 is a wasteful number, since it uses less digits than its factorization.

744311947440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83818966 (or 83818960 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 744311947440 in words is "seven hundred forty-four billion, three hundred eleven million, nine hundred forty-seven thousand, four hundred forty".