449625856 has 36 divisors (see below), whose sum is σ = 900946144. Its totient is φ = 223948800.

The previous prime is 449625851. The next prime is 449625859. The reversal of 449625856 is 658526944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449625851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66136 + ... + 72616.

Almost surely, 2^449625856 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 449625856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450473072).

449625856 is an abundant number, since it is smaller than the sum of its proper divisors (451320288).

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

449625856 is an equidigital number, since it uses as much as digits as its factorization.

449625856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6768 (or 6754 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 49.

The square root of 449625856 is about 21204.3829431559. The cubic root of 449625856 is about 766.0969956729.

The spelling of 449625856 in words is "four hundred forty-nine million, six hundred twenty-five thousand, eight hundred fifty-six".