449843922 has 64 divisors (see below), whose sum is σ = 1094428800. Its totient is φ = 135829440.

The previous prime is 449843921. The next prime is 449843939. The reversal of 449843922 is 229348944.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (449843921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187104 + ... + 189492.

It is an arithmetic number, because the mean of its divisors is an integer number (17100450).

Almost surely, 2^449843922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449843922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547214400).

449843922 is an abundant number, since it is smaller than the sum of its proper divisors (644584878).

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

449843922 is a wasteful number, since it uses less digits than its factorization.

449843922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728 (or 2722 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 449843922 is about 21209.5243228131. The cubic root of 449843922 is about 766.2208265609.

The spelling of 449843922 in words is "four hundred forty-nine million, eight hundred forty-three thousand, nine hundred twenty-two".