12306444 has 12 divisors (see below), whose sum is σ = 28715064. Its totient is φ = 4102144.

The previous prime is 12306443. The next prime is 12306457. The reversal of 12306444 is 44460321.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12306443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512757 + ... + 512780.

It is an arithmetic number, because the mean of its divisors is an integer number (2392922).

Almost surely, 2^12306444 is an apocalyptic number.

It is an amenable number.

12306444 is an abundant number, since it is smaller than the sum of its proper divisors (16408620).

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

12306444 is a wasteful number, since it uses less digits than its factorization.

12306444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025544 (or 1025542 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 12306444 is about 3508.0541614975. The cubic root of 12306444 is about 230.8753286150.

Adding to 12306444 its reverse (44460321), we get a palindrome (56766765).

The spelling of 12306444 in words is "twelve million, three hundred six thousand, four hundred forty-four".