12440134040 has 32 divisors (see below), whose sum is σ = 28008396000. Its totient is φ = 4972836864.

The previous prime is 12440133983. The next prime is 12440134051. The reversal of 12440134040 is 4043104421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12440133997 and 12440134015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37385 + ... + 162104.

It is an arithmetic number, because the mean of its divisors is an integer number (875262375).

Almost surely, 2^12440134040 is an apocalyptic number.

12440134040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12440134040 is an abundant number, since it is smaller than the sum of its proper divisors (15568261960).

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

12440134040 is a wasteful number, since it uses less digits than its factorization.

12440134040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201059 (or 201055 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12440134040 its reverse (4043104421), we get a palindrome (16483238461).

The spelling of 12440134040 in words is "twelve billion, four hundred forty million, one hundred thirty-four thousand, forty".