449915904 has 88 divisors (see below), whose sum is σ = 1332515120. Its totient is φ = 149962752.

The previous prime is 449915891. The next prime is 449915959. The reversal of 449915904 is 409519944.

449915904 is a `hidden beast` number, since 4 + 499 + 159 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 449915904.

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, 19512 + ... + 35784.

Almost surely, 2^449915904 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 449915904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666257560).

449915904 is an abundant number, since it is smaller than the sum of its proper divisors (882599216).

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

449915904 is a wasteful number, since it uses less digits than its factorization.

449915904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16302 (or 16278 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 449915904 is about 21211.2211812522. The cubic root of 449915904 is about 766.2616934507.

The spelling of 449915904 in words is "four hundred forty-nine million, nine hundred fifteen thousand, nine hundred four".