449217912 has 192 divisors, whose sum is σ = 1405756800. Its totient is φ = 117607680.

The previous prime is 449217907. The next prime is 449217929. The reversal of 449217912 is 219712944.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5412223 + ... + 5412305.

It is an arithmetic number, because the mean of its divisors is an integer number (7321650).

Almost surely, 2^449217912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449217912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702878400).

449217912 is an abundant number, since it is smaller than the sum of its proper divisors (956538888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449217912 is a wasteful number, since it uses less digits than its factorization.

449217912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 131 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 449217912 is about 21194.7614282398. The cubic root of 449217912 is about 765.8652331724.

The spelling of 449217912 in words is "four hundred forty-nine million, two hundred seventeen thousand, nine hundred twelve".