449493804 has 72 divisors (see below), whose sum is σ = 1217689200. Its totient is φ = 139302912.

The previous prime is 449493763. The next prime is 449493817. The reversal of 449493804 is 408394944.

It is a self number, because there is not a number n which added to its sum of digits gives 449493804.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46372 + ... + 55220.

It is an arithmetic number, because the mean of its divisors is an integer number (16912350).

Almost surely, 2^449493804 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 449493804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608844600).

449493804 is an abundant number, since it is smaller than the sum of its proper divisors (768195396).

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

449493804 is a wasteful number, since it uses less digits than its factorization.

449493804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8959 (or 8954 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 449493804 is about 21201.2689242885. The cubic root of 449493804 is about 766.0219892021.

The spelling of 449493804 in words is "four hundred forty-nine million, four hundred ninety-three thousand, eight hundred four".