449999960 has 64 divisors (see below), whose sum is σ = 1057320000. Its totient is φ = 172150272.

The previous prime is 449999947. The next prime is 449999981. The reversal of 449999960 is 69999944.

It is a self number, because there is not a number n which added to its sum of digits gives 449999960.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124661 + ... + 128219.

It is an arithmetic number, because the mean of its divisors is an integer number (16520625).

Almost surely, 2^449999960 is an apocalyptic number.

449999960 is a gapful number since it is divisible by the number (40) 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 449999960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528660000).

449999960 is an abundant number, since it is smaller than the sum of its proper divisors (607320040).

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

449999960 is a wasteful number, since it uses less digits than its factorization.

449999960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708 (or 3704 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 59.

The square root of 449999960 is about 21213.2024927874. The cubic root of 449999960 is about 766.3094096881.

The spelling of 449999960 in words is "four hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred sixty".