12807444 has 96 divisors (see below), whose sum is σ = 35280000. Its totient is φ = 3580416.

The previous prime is 12807427. The next prime is 12807449. The reversal of 12807444 is 44470821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12807449) 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 31 ways as a sum of consecutive naturals, for example, 85882 + ... + 86030.

It is an arithmetic number, because the mean of its divisors is an integer number (367500).

Almost surely, 2^12807444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12807444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17640000).

12807444 is an abundant number, since it is smaller than the sum of its proper divisors (22472556).

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

12807444 is a wasteful number, since it uses less digits than its factorization.

12807444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 12807444 is about 3578.7489434158. The cubic root of 12807444 is about 233.9667569110.

The spelling of 12807444 in words is "twelve million, eight hundred seven thousand, four hundred forty-four".