12344402320 has 40 divisors (see below), whose sum is σ = 28709144640. Its totient is φ = 4936314240.

The previous prime is 12344402297. The next prime is 12344402327. The reversal of 12344402320 is 2320444321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (12344402327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276775 + ... + 318265.

It is an arithmetic number, because the mean of its divisors is an integer number (717728616).

Almost surely, 2^12344402320 is an apocalyptic number.

12344402320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12344402320 is an abundant number, since it is smaller than the sum of its proper divisors (16364742320).

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

12344402320 is a wasteful number, since it uses less digits than its factorization.

12344402320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45223 (or 45217 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 12344402320 its reverse (2320444321), we get a palindrome (14664846641).

The spelling of 12344402320 in words is "twelve billion, three hundred forty-four million, four hundred two thousand, three hundred twenty".