4444040440 has 32 divisors (see below), whose sum is σ = 11427533280. Its totient is φ = 1523670912.

The previous prime is 4444040429. The next prime is 4444040441. The reversal of 4444040440 is 440404444.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 4444040399 and 4444040408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444040441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7935507 + ... + 7936066.

It is an arithmetic number, because the mean of its divisors is an integer number (357110415).

Almost surely, 2^4444040440 is an apocalyptic number.

4444040440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444040440 is an abundant number, since it is smaller than the sum of its proper divisors (6983492840).

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

4444040440 is a wasteful number, since it uses less digits than its factorization.

4444040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15871591 (or 15871587 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 4444040440 is about 66663.6365644719. The cubic root of 4444040440 is about 1644.0915633455.

Adding to 4444040440 its reverse (440404444), we get a palindrome (4884444884).

It can be divided in two parts, 4 and 444040440, that added together give a palindrome (444040444).

The spelling of 4444040440 in words is "four billion, four hundred forty-four million, forty thousand, four hundred forty".