449486568 has 96 divisors (see below), whose sum is σ = 1272585600. Its totient is φ = 143184384.

The previous prime is 449486561. The next prime is 449486621. The reversal of 449486568 is 865684944.

It is not an unprimeable number, because it can be changed into a prime (449486561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143968 + ... + 147056.

It is an arithmetic number, because the mean of its divisors is an integer number (13256100).

Almost surely, 2^449486568 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 449486568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636292800).

449486568 is an abundant number, since it is smaller than the sum of its proper divisors (823099032).

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

449486568 is a wasteful number, since it uses less digits than its factorization.

449486568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191 (or 3184 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 449486568 is about 21201.0982734386. The cubic root of 449486568 is about 766.0178786784.

It can be divided in two parts, 449486 and 568, that added together give a palindrome (450054).

The spelling of 449486568 in words is "four hundred forty-nine million, four hundred eighty-six thousand, five hundred sixty-eight".