2144105440 has 48 divisors (see below), whose sum is σ = 5105382912. Its totient is φ = 850881024.

The previous prime is 2144105437. The next prime is 2144105449. The reversal of 2144105440 is 445014412.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144105449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32439 + ... + 73078.

It is an arithmetic number, because the mean of its divisors is an integer number (106362144).

Almost surely, 2^2144105440 is an apocalyptic number.

2144105440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144105440 is an abundant number, since it is smaller than the sum of its proper divisors (2961277472).

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

2144105440 is a wasteful number, since it uses less digits than its factorization.

2144105440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105659 (or 105651 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2144105440 is about 46304.4861757476. The cubic root of 2144105440 is about 1289.4822832883.

Adding to 2144105440 its reverse (445014412), we get a palindrome (2589119852).

It can be divided in two parts, 2144 and 105440, that added together give a square (107584 = 328²).

The spelling of 2144105440 in words is "two billion, one hundred forty-four million, one hundred five thousand, four hundred forty".