12444403388 has 24 divisors (see below), whose sum is σ = 22182671952. Its totient is φ = 6107169024.

The previous prime is 12444403351. The next prime is 12444403397. The reversal of 12444403388 is 88330444421.

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, 9581 + ... + 158052.

It is an arithmetic number, because the mean of its divisors is an integer number (924277998).

Almost surely, 2^12444403388 is an apocalyptic number.

It is an amenable number.

12444403388 is a deficient number, since it is larger than the sum of its proper divisors (9738268564).

12444403388 is a wasteful number, since it uses less digits than its factorization.

12444403388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167981 (or 167979 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 41.

The spelling of 12444403388 in words is "twelve billion, four hundred forty-four million, four hundred three thousand, three hundred eighty-eight".