12340200444 has 96 divisors (see below), whose sum is σ = 33906808320. Its totient is φ = 3443731200.

The previous prime is 12340200421. The next prime is 12340200449. The reversal of 12340200444 is 44400204321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12340200449) by changing a digit.

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, 745134 + ... + 761514.

It is an arithmetic number, because the mean of its divisors is an integer number (353195920).

Almost surely, 2^12340200444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12340200444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16953404160).

12340200444 is an abundant number, since it is smaller than the sum of its proper divisors (21566607876).

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

12340200444 is a wasteful number, since it uses less digits than its factorization.

12340200444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16851 (or 16849 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 12340200444 its reverse (44400204321), we get a palindrome (56740404765).

The spelling of 12340200444 in words is "twelve billion, three hundred forty million, two hundred thousand, four hundred forty-four".