449226408832 has 64 divisors (see below), whose sum is σ = 900706716000. Its totient is φ = 223167913984.

The previous prime is 449226408769. The next prime is 449226408833. The reversal of 449226408832 is 238804622944.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 449226408832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449226408833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76801044 + ... + 76806892.

Almost surely, 2^449226408832 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 449226408832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450353358000).

449226408832 is an abundant number, since it is smaller than the sum of its proper divisors (451480307168).

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

449226408832 is a wasteful number, since it uses less digits than its factorization.

449226408832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9623 (or 9611 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 449226408832 in words is "four hundred forty-nine billion, two hundred twenty-six million, four hundred eight thousand, eight hundred thirty-two".