12244344140 has 96 divisors (see below), whose sum is σ = 30917303424. Its totient is φ = 3984906240.

The previous prime is 12244344131. The next prime is 12244344169. The reversal of 12244344140 is 4144344221.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 183554 + ... + 241206.

It is an arithmetic number, because the mean of its divisors is an integer number (322055244).

Almost surely, 2^12244344140 is an apocalyptic number.

12244344140 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 12244344140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15458651712).

12244344140 is an abundant number, since it is smaller than the sum of its proper divisors (18672959284).

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

12244344140 is a wasteful number, since it uses less digits than its factorization.

12244344140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57747 (or 57745 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 12244344140 its reverse (4144344221), we get a palindrome (16388688361).

The spelling of 12244344140 in words is "twelve billion, two hundred forty-four million, three hundred forty-four thousand, one hundred forty".