744242447 has 4 divisors (see below), whose sum is σ = 801491880. Its totient is φ = 686993016.

The previous prime is 744242431. The next prime is 744242449.

744242447 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 744242447 - 2⁴ = 744242431 is a prime.

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 744242447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744242449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28624697 + ... + 28624722.

It is an arithmetic number, because the mean of its divisors is an integer number (200372970).

Almost surely, 2^744242447 is an apocalyptic number.

744242447 is a deficient number, since it is larger than the sum of its proper divisors (57249433).

744242447 is a wasteful number, since it uses less digits than its factorization.

744242447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57249432.

The product of its digits is 200704, while the sum is 38.

The square root of 744242447 is about 27280.8073011046. The cubic root of 744242447 is about 906.2293953809.

The spelling of 744242447 in words is "seven hundred forty-four million, two hundred forty-two thousand, four hundred forty-seven".