12244312340 has 48 divisors (see below), whose sum is σ = 27742486800. Its totient is φ = 4512568320.

The previous prime is 12244312321. The next prime is 12244312363. The reversal of 12244312340 is 4321344221.

It can be written as a sum of positive squares in 8 ways, for example, as 725871364 + 11518440976 = 26942^2 + 107324^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97136 + ... + 184184.

It is an arithmetic number, because the mean of its divisors is an integer number (577968475).

Almost surely, 2^12244312340 is an apocalyptic number.

12244312340 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 12244312340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13871243400).

12244312340 is an abundant number, since it is smaller than the sum of its proper divisors (15498174460).

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

12244312340 is a wasteful number, since it uses less digits than its factorization.

12244312340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87612 (or 87610 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 12244312340 its reverse (4321344221), we get a palindrome (16565656561).

The spelling of 12244312340 in words is "twelve billion, two hundred forty-four million, three hundred twelve thousand, three hundred forty".