12322002440 has 64 divisors (see below), whose sum is σ = 30740800320. Its totient is φ = 4407264000.

The previous prime is 12322002437. The next prime is 12322002443. The reversal of 12322002440 is 4420022321.

12322002440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12322002437) and next prime (12322002443).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (12322002443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202706 + ... + 256385.

It is an arithmetic number, because the mean of its divisors is an integer number (480325005).

Almost surely, 2^12322002440 is an apocalyptic number.

12322002440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12322002440 is an abundant number, since it is smaller than the sum of its proper divisors (18418797880).

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

12322002440 is a wasteful number, since it uses less digits than its factorization.

12322002440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459174 (or 459170 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 12322002440 its reverse (4420022321), we get a palindrome (16742024761).

The spelling of 12322002440 in words is "twelve billion, three hundred twenty-two million, two thousand, four hundred forty".