12442323340 has 36 divisors (see below), whose sum is σ = 27314333424. Its totient is φ = 4760537056.

The previous prime is 12442323253. The next prime is 12442323347. The reversal of 12442323340 is 4332324421.

It is a super-2 number, since 2×12442323340² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12442323299 and 12442323308.

It is not an unprimeable number, because it can be changed into a prime (12442323347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 577432 + ... + 598591.

It is an arithmetic number, because the mean of its divisors is an integer number (758731484).

Almost surely, 2^12442323340 is an apocalyptic number.

12442323340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12442323340 is an abundant number, since it is smaller than the sum of its proper divisors (14872010084).

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

12442323340 is a wasteful number, since it uses less digits than its factorization.

12442323340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176078 (or 1176053 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 12442323340 its reverse (4332324421), we get a palindrome (16774647761).

The spelling of 12442323340 in words is "twelve billion, four hundred forty-two million, three hundred twenty-three thousand, three hundred forty".