12718446 has 48 divisors (see below), whose sum is σ = 28367472. Its totient is φ = 3778560.

The previous prime is 12718403. The next prime is 12718451. The reversal of 12718446 is 64481721.

12718446 is a nontrivial binomial coefficient, being equal to C(5044, 2).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131070 + ... + 131166.

It is an arithmetic number, because the mean of its divisors is an integer number (590989).

Almost surely, 2^12718446 is an apocalyptic number.

12718446 is the 5043-rd triangular number and also the 2522-nd hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12718446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14183736).

12718446 is an abundant number, since it is smaller than the sum of its proper divisors (15649026).

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

12718446 is a wasteful number, since it uses less digits than its factorization.

12718446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 156 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 12718446 is about 3566.2930333892. The cubic root of 12718446 is about 233.4235573984.

The spelling of 12718446 in words is "twelve million, seven hundred eighteen thousand, four hundred forty-six".