440449313922 has 54 divisors (see below), whose sum is σ = 1007299381257. Its totient is φ = 139072362912.

The previous prime is 440449313879. The next prime is 440449313923. The reversal of 440449313922 is 229313944044.

440449313922 is a `hidden beast` number, since 4 + 4 + 0 + 4 + 493 + 139 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 394345064961 + 46104248961 = 627969^2 + 214719^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=469281.

It is not an unprimeable number, because it can be changed into a prime (440449313923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 53493918 + ... + 53502150.

Almost surely, 2^440449313922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440449313922

440449313922 is an abundant number, since it is smaller than the sum of its proper divisors (566850067335).

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

440449313922 is an frugal number, since it uses more digits than its factorization.

440449313922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16512 (or 8257 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 440449313922 in words is "four hundred forty billion, four hundred forty-nine million, three hundred thirteen thousand, nine hundred twenty-two".