440444440444 has 48 divisors (see below), whose sum is σ = 784773108000. Its totient is φ = 216263520000.

The previous prime is 440444440439. The next prime is 440444440459. The reversal of 440444440444 is 444044444044.

It is a junction number, because it is equal to n+sod(n) for n = 440444440397 and 440444440406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44479894 + ... + 44489794.

It is an arithmetic number, because the mean of its divisors is an integer number (16349439750).

Almost surely, 2^440444440444 is an apocalyptic number.

It is an amenable number.

440444440444 is a deficient number, since it is larger than the sum of its proper divisors (344328667556).

440444440444 is a wasteful number, since it uses less digits than its factorization.

440444440444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10894 (or 10892 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 440444440444 its reverse (444044444044), we get a palindrome (884488884488).

The spelling of 440444440444 in words is "four hundred forty billion, four hundred forty-four million, four hundred forty thousand, four hundred forty-four".