12966442 has 8 divisors (see below), whose sum is σ = 19548000. Its totient is φ = 6450444.

The previous prime is 12966439. The next prime is 12966449. The reversal of 12966442 is 24466921.

12966442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12966398 and 12966407.

It is not an unprimeable number, because it can be changed into a prime (12966449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15892 + ... + 16687.

It is an arithmetic number, because the mean of its divisors is an integer number (2443500).

Almost surely, 2^12966442 is an apocalyptic number.

12966442 is a deficient number, since it is larger than the sum of its proper divisors (6581558).

12966442 is a wasteful number, since it uses less digits than its factorization.

12966442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32780.

The product of its digits is 20736, while the sum is 34.

The square root of 12966442 is about 3600.8946110654. The cubic root of 12966442 is about 234.9309711243.

The spelling of 12966442 in words is "twelve million, nine hundred sixty-six thousand, four hundred forty-two".