440444000444 has 48 divisors (see below), whose sum is σ = 883047922176. Its totient is φ = 188299425600.

The previous prime is 440444000351. The next prime is 440444000453. The reversal of 440444000444 is 444000444044.

It is a super-2 number, since 2×440444000444² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 440444000444.

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, 20773889 + ... + 20795079.

It is an arithmetic number, because the mean of its divisors is an integer number (18396831712).

Almost surely, 2^440444000444 is an apocalyptic number.

It is an amenable number.

440444000444 is an abundant number, since it is smaller than the sum of its proper divisors (442603921732).

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

440444000444 is a wasteful number, since it uses less digits than its factorization.

440444000444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22986 (or 22984 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 440444000444 its reverse (444000444044), we get a palindrome (884444444488).

The spelling of 440444000444 in words is "four hundred forty billion, four hundred forty-four million, four hundred forty-four", and thus it is an aban number.