4444440440 has 64 divisors (see below), whose sum is σ = 11162828160. Its totient is φ = 1578568320.

The previous prime is 4444440439. The next prime is 4444440449. The reversal of 4444440440 is 440444444.

It is a junction number, because it is equal to n+sod(n) for n = 4444440397 and 4444440406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444440449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98534 + ... + 136373.

It is an arithmetic number, because the mean of its divisors is an integer number (174419190).

Almost surely, 2^4444440440 is an apocalyptic number.

4444440440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444440440 is an abundant number, since it is smaller than the sum of its proper divisors (6718387720).

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

4444440440 is a wasteful number, since it uses less digits than its factorization.

4444440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234972 (or 234968 counting only the distinct ones).

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

The square root of 4444440440 is about 66666.6366333266. The cubic root of 4444440440 is about 1644.1408890964.

Adding to 4444440440 its reverse (440444444), we get a palindrome (4884884884).

It can be divided in two parts, 44444404 and 40, that added together give a palindrome (44444444).

The spelling of 4444440440 in words is "four billion, four hundred forty-four million, four hundred forty thousand, four hundred forty".