449226408640 has 28 divisors (see below), whose sum is σ = 1069720386336. Its totient is φ = 179690563328.

The previous prime is 449226408613. The next prime is 449226408641. The reversal of 449226408640 is 46804622944.

It is not an unprimeable number, because it can be changed into a prime (449226408641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701915944 + ... + 701916583.

It is an arithmetic number, because the mean of its divisors is an integer number (38204299512).

Almost surely, 2^449226408640 is an apocalyptic number.

449226408640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449226408640 is an abundant number, since it is smaller than the sum of its proper divisors (620493977696).

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

449226408640 is a wasteful number, since it uses less digits than its factorization.

449226408640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403832544 (or 1403832534 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 49.

The spelling of 449226408640 in words is "four hundred forty-nine billion, two hundred twenty-six million, four hundred eight thousand, six hundred forty".