440460380644 has 24 divisors (see below), whose sum is σ = 803453766080. Its totient is φ = 211079838816.

The previous prime is 440460380641. The next prime is 440460380651. The reversal of 440460380644 is 446083064044.

It is a self number, because there is not a number n which added to its sum of digits gives 440460380644.

It is not an unprimeable number, because it can be changed into a prime (440460380641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22199664 + ... + 22219495.

Almost surely, 2^440460380644 is an apocalyptic number.

It is an amenable number.

440460380644 is a deficient number, since it is larger than the sum of its proper divisors (362993385436).

440460380644 is a wasteful number, since it uses less digits than its factorization.

440460380644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44419267 (or 44419265 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 43.

The spelling of 440460380644 in words is "four hundred forty billion, four hundred sixty million, three hundred eighty thousand, six hundred forty-four".