449307648 has 110 divisors (see below), whose sum is σ = 1341968166. Its totient is φ = 149741568.

The previous prime is 449307629. The next prime is 449307653. The reversal of 449307648 is 846703944.

It can be written as a sum of positive squares in only one way, i.e., 288728064 + 160579584 = 16992^2 + 12672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 80236 + ... + 85652.

Almost surely, 2^449307648 is an apocalyptic number.

449307648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449307648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670984083).

449307648 is an abundant number, since it is smaller than the sum of its proper divisors (892660518).

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

449307648 is an equidigital number, since it uses as much as digits as its factorization.

449307648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449 (or 5422 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 449307648 is about 21196.8782607251. The cubic root of 449307648 is about 765.9162263207.

The spelling of 449307648 in words is "four hundred forty-nine million, three hundred seven thousand, six hundred forty-eight".