12440322330 has 16 divisors (see below), whose sum is σ = 29856773664. Its totient is φ = 3317419280.

The previous prime is 12440322319. The next prime is 12440322343. The reversal of 12440322330 is 3322304421.

It is a self number, because there is not a number n which added to its sum of digits gives 12440322330.

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, 207338676 + ... + 207338735.

It is an arithmetic number, because the mean of its divisors is an integer number (1866048354).

Almost surely, 2^12440322330 is an apocalyptic number.

12440322330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12440322330 is an abundant number, since it is smaller than the sum of its proper divisors (17416451334).

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

12440322330 is a wasteful number, since it uses less digits than its factorization.

12440322330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414677421.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 12440322330 its reverse (3322304421), we get a palindrome (15762626751).

The spelling of 12440322330 in words is "twelve billion, four hundred forty million, three hundred twenty-two thousand, three hundred thirty".