12344847340 has 72 divisors (see below), whose sum is σ = 30190082832. Its totient is φ = 4227834240.

The previous prime is 12344847287. The next prime is 12344847341. The reversal of 12344847340 is 4374844321.

It is a junction number, because it is equal to n+sod(n) for n = 12344847293 and 12344847302.

It is not an unprimeable number, because it can be changed into a prime (12344847341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 945094 + ... + 958066.

It is an arithmetic number, because the mean of its divisors is an integer number (419306706).

Almost surely, 2^12344847340 is an apocalyptic number.

12344847340 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 12344847340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15095041416).

12344847340 is an abundant number, since it is smaller than the sum of its proper divisors (17845235492).

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

12344847340 is a wasteful number, since it uses less digits than its factorization.

12344847340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13967 (or 13958 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 40.

The spelling of 12344847340 in words is "twelve billion, three hundred forty-four million, eight hundred forty-seven thousand, three hundred forty".