449339220947 has 4 divisors (see below), whose sum is σ = 451620130896. Its totient is φ = 447058311000.

The previous prime is 449339220937. The next prime is 449339220971. The reversal of 449339220947 is 749022933944.

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 449339220947 - 2⁸ = 449339220691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449339220892 and 449339220901.

It is not an unprimeable number, because it can be changed into a prime (449339220937) 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, 1140454679 + ... + 1140455072.

It is an arithmetic number, because the mean of its divisors is an integer number (112905032724).

Almost surely, 2^449339220947 is an apocalyptic number.

449339220947 is a deficient number, since it is larger than the sum of its proper divisors (2280909949).

449339220947 is a wasteful number, since it uses less digits than its factorization.

449339220947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280909948.

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 449339220947 in words is "four hundred forty-nine billion, three hundred thirty-nine million, two hundred twenty thousand, nine hundred forty-seven".