2244044440 has 128 divisors (see below), whose sum is σ = 5708102400. Its totient is φ = 786885120.

The previous prime is 2244044377. The next prime is 2244044443. The reversal of 2244044440 is 444404422.

It is a junction number, because it is equal to n+sod(n) for n = 2244044399 and 2244044408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244044443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1569646 + ... + 1571074.

It is an arithmetic number, because the mean of its divisors is an integer number (44594550).

Almost surely, 2^2244044440 is an apocalyptic number.

2244044440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2244044440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2854051200).

2244044440 is an abundant number, since it is smaller than the sum of its proper divisors (3464057960).

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

2244044440 is a wasteful number, since it uses less digits than its factorization.

2244044440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577 (or 1573 counting only the distinct ones).

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

The square root of 2244044440 is about 47371.3461915534. The cubic root of 2244044440 is about 1309.2135286668.

Adding to 2244044440 its reverse (444404422), we get a palindrome (2688448862).

The spelling of 2244044440 in words is "two billion, two hundred forty-four million, forty-four thousand, four hundred forty".