2244161140 has 72 divisors (see below), whose sum is σ = 5136861240. Its totient is φ = 823140864.

The previous prime is 2244161119. The next prime is 2244161167. The reversal of 2244161140 is 411614422.

It can be written as a sum of positive squares in 12 ways, for example, as 713317264 + 1530843876 = 26708^2 + 39126^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 528546 + ... + 532774.

It is an arithmetic number, because the mean of its divisors is an integer number (71345295).

Almost surely, 2^2244161140 is an apocalyptic number.

2244161140 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 2244161140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2568430620).

2244161140 is an abundant number, since it is smaller than the sum of its proper divisors (2892700100).

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

2244161140 is a wasteful number, since it uses less digits than its factorization.

2244161140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4421 (or 4406 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2244161140 is about 47372.5779328083. The cubic root of 2244161140 is about 1309.2362231922.

Adding to 2244161140 its reverse (411614422), we get a palindrome (2655775562).

The spelling of 2244161140 in words is "two billion, two hundred forty-four million, one hundred sixty-one thousand, one hundred forty".