4444544240 has 40 divisors (see below), whose sum is σ = 10350536928. Its totient is φ = 1774897920.

The previous prime is 4444544129. The next prime is 4444544257. The reversal of 4444544240 is 424454444.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 4444544240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3725 + ... + 94355.

Almost surely, 2^4444544240 is an apocalyptic number.

4444544240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444544240 is an abundant number, since it is smaller than the sum of its proper divisors (5905992688).

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

4444544240 is a wasteful number, since it uses less digits than its factorization.

4444544240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91257 (or 91251 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 35.

The square root of 4444544240 is about 66667.4151291319. The cubic root of 4444544240 is about 1644.1536886451.

Adding to 4444544240 its reverse (424454444), we get a palindrome (4868998684).

The spelling of 4444544240 in words is "four billion, four hundred forty-four million, five hundred forty-four thousand, two hundred forty".