744318720 has 216 divisors, whose sum is σ = 2671761456. Its totient is φ = 198402048.

The previous prime is 744318703. The next prime is 744318779. The reversal of 744318720 is 27813447.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 309844 + ... + 312236.

It is an arithmetic number, because the mean of its divisors is an integer number (12369266).

Almost surely, 2^744318720 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 744318720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1335880728).

744318720 is an abundant number, since it is smaller than the sum of its proper divisors (1927442736).

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

744318720 is an equidigital number, since it uses as much as digits as its factorization.

744318720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 744318720 is about 27282.2051894637. The cubic root of 744318720 is about 906.2603523510.

The spelling of 744318720 in words is "seven hundred forty-four million, three hundred eighteen thousand, seven hundred twenty".