449226408920 has 64 divisors (see below), whose sum is σ = 1025490715200. Its totient is φ = 177074114560.

The previous prime is 449226408913. The next prime is 449226408923. The reversal of 449226408920 is 29804622944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449226408923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6009212 + ... + 6083508.

It is an arithmetic number, because the mean of its divisors is an integer number (16023292425).

Almost surely, 2^449226408920 is an apocalyptic number.

449226408920 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 449226408920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512745357600).

449226408920 is an abundant number, since it is smaller than the sum of its proper divisors (576264306280).

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

449226408920 is a wasteful number, since it uses less digits than its factorization.

449226408920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76508 (or 76504 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 449226408920 in words is "four hundred forty-nine billion, two hundred twenty-six million, four hundred eight thousand, nine hundred twenty".