12444343420 has 12 divisors (see below), whose sum is σ = 26133121224. Its totient is φ = 4977737360.

The previous prime is 12444343409. The next prime is 12444343427. The reversal of 12444343420 is 2434344421.

It is a super-3 number, since 3×12444343420³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444343427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311108566 + ... + 311108605.

It is an arithmetic number, because the mean of its divisors is an integer number (2177760102).

Almost surely, 2^12444343420 is an apocalyptic number.

12444343420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12444343420 is an abundant number, since it is smaller than the sum of its proper divisors (13688777804).

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

12444343420 is a wasteful number, since it uses less digits than its factorization.

12444343420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622217180 (or 622217178 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 12444343420 its reverse (2434344421), we get a palindrome (14878687841).

The spelling of 12444343420 in words is "twelve billion, four hundred forty-four million, three hundred forty-three thousand, four hundred twenty".