1044440213140 has 96 divisors (see below), whose sum is σ = 2292904000800. Its totient is φ = 399301632000.

The previous prime is 1044440213119. The next prime is 1044440213143. The reversal of 1044440213140 is 413120444401.

It can be written as a sum of positive squares in 16 ways, for example, as 892461868804 + 151978344336 = 944702^2 + 389844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1044440213099 and 1044440213108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044440213143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8860590 + ... + 8977690.

It is an arithmetic number, because the mean of its divisors is an integer number (23884416675).

Almost surely, 2^{1044440213140} is an apocalyptic number.

1044440213140 is a gapful number since it is divisible by the number (10) 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 1044440213140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146452000400).

1044440213140 is an abundant number, since it is smaller than the sum of its proper divisors (1248463787660).

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

1044440213140 is a wasteful number, since it uses less digits than its factorization.

1044440213140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117373 (or 117371 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1044440213140 its reverse (413120444401), we get a palindrome (1457560657541).

The spelling of 1044440213140 in words is "one trillion, forty-four billion, four hundred forty million, two hundred thirteen thousand, one hundred forty".