12945366 has 64 divisors (see below), whose sum is σ = 34329600. Its totient is φ = 3535488.

The previous prime is 12945323. The next prime is 12945377. The reversal of 12945366 is 66354921.

It is a happy number.

12945366 is a `hidden beast` number, since 1 + 294 + 5 + 366 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12945366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7950 + ... + 9438.

It is an arithmetic number, because the mean of its divisors is an integer number (536400).

Almost surely, 2^12945366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12945366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17164800).

12945366 is an abundant number, since it is smaller than the sum of its proper divisors (21384234).

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

12945366 is a wasteful number, since it uses less digits than its factorization.

12945366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530 (or 1524 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 12945366 is about 3597.9669259180. The cubic root of 12945366 is about 234.8036144115.

The spelling of 12945366 in words is "twelve million, nine hundred forty-five thousand, three hundred sixty-six".