12861426 has 8 divisors (see below), whose sum is σ = 25722864. Its totient is φ = 4287140.

The previous prime is 12861421. The next prime is 12861427. The reversal of 12861426 is 62416821.

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

12861426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12861393 and 12861402.

It is not an unprimeable number, because it can be changed into a prime (12861421) 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, 1071780 + ... + 1071791.

It is an arithmetic number, because the mean of its divisors is an integer number (3215358).

Almost surely, 2^12861426 is an apocalyptic number.

12861426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12861426 is a wasteful number, since it uses less digits than its factorization.

12861426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143576.

The product of its digits is 4608, while the sum is 30.

The square root of 12861426 is about 3586.2830340061. The cubic root of 12861426 is about 234.2950110684.

The spelling of 12861426 in words is "twelve million, eight hundred sixty-one thousand, four hundred twenty-six".