449217992 has 16 divisors (see below), whose sum is σ = 842886000. Its totient is φ = 224448400.

The previous prime is 449217959. The next prime is 449217997. The reversal of 449217992 is 299712944.

It is not an unprimeable number, because it can be changed into a prime (449217997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7742 + ... + 30957.

It is an arithmetic number, because the mean of its divisors is an integer number (52680375).

Almost surely, 2^449217992 is an apocalyptic number.

It is an amenable number.

449217992 is a deficient number, since it is larger than the sum of its proper divisors (393668008).

449217992 is a wasteful number, since it uses less digits than its factorization.

449217992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40156 (or 40152 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 449217992 is about 21194.7633154985. The cubic root of 449217992 is about 765.8652786360.

The spelling of 449217992 in words is "four hundred forty-nine million, two hundred seventeen thousand, nine hundred ninety-two".