12350402440 has 64 divisors (see below), whose sum is σ = 28434447360. Its totient is φ = 4825716480.

The previous prime is 12350402419. The next prime is 12350402459. The reversal of 12350402440 is 4420405321.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1011009 + ... + 1023151.

It is an arithmetic number, because the mean of its divisors is an integer number (444288240).

Almost surely, 2^12350402440 is an apocalyptic number.

12350402440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12350402440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14217223680).

12350402440 is an abundant number, since it is smaller than the sum of its proper divisors (16084044920).

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

12350402440 is a wasteful number, since it uses less digits than its factorization.

12350402440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12742 (or 12738 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 12350402440 its reverse (4420405321), we get a palindrome (16770807761).

The spelling of 12350402440 in words is "twelve billion, three hundred fifty million, four hundred two thousand, four hundred forty".