449275068 has 144 divisors (see below), whose sum is σ = 1283143680. Its totient is φ = 131376000.

The previous prime is 449275067. The next prime is 449275087. The reversal of 449275068 is 860572944.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449275061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1879693 + ... + 1879931.

It is an arithmetic number, because the mean of its divisors is an integer number (8910720).

Almost surely, 2^449275068 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 449275068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641571840).

449275068 is an abundant number, since it is smaller than the sum of its proper divisors (833868612).

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

449275068 is a wasteful number, since it uses less digits than its factorization.

449275068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 449275068 is about 21196.1097374023. The cubic root of 449275068 is about 765.8977132789.

The spelling of 449275068 in words is "four hundred forty-nine million, two hundred seventy-five thousand, sixty-eight".