744989616 has 160 divisors (see below), whose sum is σ = 2481031680. Its totient is φ = 209620224.

The previous prime is 744989593. The next prime is 744989617. The reversal of 744989616 is 616989447.

744989616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (744989617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200770 + ... + 204446.

It is an arithmetic number, because the mean of its divisors is an integer number (15506448).

Almost surely, 2^744989616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 744989616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240515840).

744989616 is an abundant number, since it is smaller than the sum of its proper divisors (1736042064).

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

744989616 is a wasteful number, since it uses less digits than its factorization.

744989616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3768 (or 3756 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 744989616 is about 27294.4979070874. The cubic root of 744989616 is about 906.5325582595.

The spelling of 744989616 in words is "seven hundred forty-four million, nine hundred eighty-nine thousand, six hundred sixteen".