12440314012 has 48 divisors (see below), whose sum is σ = 25737707520. Its totient is φ = 5148633600.

The previous prime is 12440313971. The next prime is 12440314067. The reversal of 12440314012 is 21041304421.

It is a happy number.

It is a super-2 number, since 2×12440314012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400812 + ... + 430732.

It is an arithmetic number, because the mean of its divisors is an integer number (536202240).

Almost surely, 2^12440314012 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 12440314012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12868853760).

12440314012 is an abundant number, since it is smaller than the sum of its proper divisors (13297393508).

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

12440314012 is a wasteful number, since it uses less digits than its factorization.

12440314012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30442 (or 30440 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12440314012 its reverse (21041304421), we get a palindrome (33481618433).

The spelling of 12440314012 in words is "twelve billion, four hundred forty million, three hundred fourteen thousand, twelve".