12643350 has 48 divisors (see below), whose sum is σ = 32378880. Its totient is φ = 3261600.

The previous prime is 12643349. The next prime is 12643361. The reversal of 12643350 is 5334621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12643350.

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, 3291 + ... + 6009.

It is an arithmetic number, because the mean of its divisors is an integer number (674560).

Almost surely, 2^12643350 is an apocalyptic number.

12643350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12643350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16189440).

12643350 is an abundant number, since it is smaller than the sum of its proper divisors (19735530).

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

12643350 is a wasteful number, since it uses less digits than its factorization.

12643350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765 (or 2760 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 12643350 is about 3555.7488662728. The cubic root of 12643350 is about 232.9632341431.

Adding to 12643350 its reverse (5334621), we get a palindrome (17977971).

The spelling of 12643350 in words is "twelve million, six hundred forty-three thousand, three hundred fifty".