449579856 has 160 divisors (see below), whose sum is σ = 1324486656. Its totient is φ = 131260800.

The previous prime is 449579839. The next prime is 449579857. The reversal of 449579856 is 658975944.

It is a junction number, because it is equal to n+sod(n) for n = 449579796 and 449579805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449579857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1980415 + ... + 1980641.

Almost surely, 2^449579856 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 449579856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662243328).

449579856 is an abundant number, since it is smaller than the sum of its proper divisors (874906800).

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

449579856 is a wasteful number, since it uses less digits than its factorization.

449579856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 274 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 57.

The square root of 449579856 is about 21203.2982340012. The cubic root of 449579856 is about 766.0708690143.

The spelling of 449579856 in words is "four hundred forty-nine million, five hundred seventy-nine thousand, eight hundred fifty-six".