449223808 has 64 divisors (see below), whose sum is σ = 1002798720. Its totient is φ = 198650880.

The previous prime is 449223779. The next prime is 449223829. The reversal of 449223808 is 808322944.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47785 + ... + 56407.

It is an arithmetic number, because the mean of its divisors is an integer number (15668730).

Almost surely, 2^449223808 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 449223808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501399360).

449223808 is an abundant number, since it is smaller than the sum of its proper divisors (553574912).

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

449223808 is a wasteful number, since it uses less digits than its factorization.

449223808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8685 (or 8673 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 449223808 is about 21194.9005187569. The cubic root of 449223808 is about 765.8685838266.

The spelling of 449223808 in words is "four hundred forty-nine million, two hundred twenty-three thousand, eight hundred eight".