449540307739 has 16 divisors (see below), whose sum is σ = 463324120000. Its totient is φ = 435844209024.

The previous prime is 449540307707. The next prime is 449540307803. The reversal of 449540307739 is 937703045944.

It is a cyclic number.

It is not a de Polignac number, because 449540307739 - 2⁵ = 449540307707 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 449540307739.

It is not an unprimeable number, because it can be changed into a prime (449540307239) 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, 20611162 + ... + 20632960.

It is an arithmetic number, because the mean of its divisors is an integer number (28957757500).

Almost surely, 2^449540307739 is an apocalyptic number.

449540307739 is a deficient number, since it is larger than the sum of its proper divisors (13783812261).

449540307739 is a wasteful number, since it uses less digits than its factorization.

449540307739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23782.

The product of its (nonzero) digits is 11430720, while the sum is 55.

The spelling of 449540307739 in words is "four hundred forty-nine billion, five hundred forty million, three hundred seven thousand, seven hundred thirty-nine".