744742081 has 8 divisors (see below), whose sum is σ = 768033000. Its totient is φ = 721695360.

The previous prime is 744742021. The next prime is 744742087. The reversal of 744742081 is 180247447.

744742081 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 4 ways, for example, as 9247681 + 735494400 = 3041^2 + 27120^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 744742081 - 2²⁵ = 711187649 is a prime.

It is a super-2 number, since 2×744742081² = 1109281534424421122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 744742081.

It is not an unprimeable number, because it can be changed into a prime (744742087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54846 + ... + 67063.

It is an arithmetic number, because the mean of its divisors is an integer number (96004125).

Almost surely, 2^744742081 is an apocalyptic number.

It is an amenable number.

744742081 is a deficient number, since it is larger than the sum of its proper divisors (23290919).

744742081 is a wasteful number, since it uses less digits than its factorization.

744742081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122099.

The product of its (nonzero) digits is 50176, while the sum is 37.

The square root of 744742081 is about 27289.9630084029. The cubic root of 744742081 is about 906.4321437079.

The spelling of 744742081 in words is "seven hundred forty-four million, seven hundred forty-two thousand, eighty-one".