449543743 has 16 divisors (see below), whose sum is σ = 518192640. Its totient is φ = 385689600.

The previous prime is 449543737. The next prime is 449543753. The reversal of 449543743 is 347345944.

It is a cyclic number.

It is not a de Polignac number, because 449543743 - 2⁵ = 449543711 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 449543743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449543713) 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, 52671 + ... + 60607.

It is an arithmetic number, because the mean of its divisors is an integer number (32387040).

Almost surely, 2^449543743 is an apocalyptic number.

449543743 is a deficient number, since it is larger than the sum of its proper divisors (68648897).

449543743 is a wasteful number, since it uses less digits than its factorization.

449543743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8238.

The product of its digits is 725760, while the sum is 43.

The square root of 449543743 is about 21202.4466276890. The cubic root of 449543743 is about 766.0503566347.

The spelling of 449543743 in words is "four hundred forty-nine million, five hundred forty-three thousand, seven hundred forty-three".