12444242340 has 48 divisors (see below), whose sum is σ = 34937356608. Its totient is φ = 3309561984.

The previous prime is 12444242323. The next prime is 12444242341. The reversal of 12444242340 is 4324244421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12444242298 and 12444242307.

It is not an unprimeable number, because it can be changed into a prime (12444242341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255642 + ... + 300401.

It is an arithmetic number, because the mean of its divisors is an integer number (727861596).

Almost surely, 2^12444242340 is an apocalyptic number.

12444242340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12444242340 is an abundant number, since it is smaller than the sum of its proper divisors (22493114268).

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

12444242340 is a wasteful number, since it uses less digits than its factorization.

12444242340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556428 (or 556426 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 12444242340 its reverse (4324244421), we get a palindrome (16768486761).

The spelling of 12444242340 in words is "twelve billion, four hundred forty-four million, two hundred forty-two thousand, three hundred forty".