12856426 has 16 divisors (see below), whose sum is σ = 22145760. Its totient is φ = 5536080.

The previous prime is 12856423. The next prime is 12856447. The reversal of 12856426 is 62465821.

It is a junction number, because it is equal to n+sod(n) for n = 12856391 and 12856400.

It is not an unprimeable number, because it can be changed into a prime (12856423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14961 + ... + 15796.

It is an arithmetic number, because the mean of its divisors is an integer number (1384110).

Almost surely, 2^12856426 is an apocalyptic number.

12856426 is a deficient number, since it is larger than the sum of its proper divisors (9289334).

12856426 is a wasteful number, since it uses less digits than its factorization.

12856426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30789.

The product of its digits is 23040, while the sum is 34.

The square root of 12856426 is about 3585.5858656571. The cubic root of 12856426 is about 234.2646456721.

The spelling of 12856426 in words is "twelve million, eight hundred fifty-six thousand, four hundred twenty-six".