12811426 has 8 divisors (see below), whose sum is σ = 19302480. Its totient is φ = 6377268.

The previous prime is 12811423. The next prime is 12811457. The reversal of 12811426 is 62411821.

12811426 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 self number, because there is not a number n which added to its sum of digits gives 12811426.

It is not an unprimeable number, because it can be changed into a prime (12811423) 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, 13656 + ... + 14563.

It is an arithmetic number, because the mean of its divisors is an integer number (2412810).

Almost surely, 2^12811426 is an apocalyptic number.

12811426 is a deficient number, since it is larger than the sum of its proper divisors (6491054).

12811426 is a wasteful number, since it uses less digits than its factorization.

12811426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28448.

The product of its digits is 768, while the sum is 25.

The square root of 12811426 is about 3579.3052398475. The cubic root of 12811426 is about 233.9910021621.

The spelling of 12811426 in words is "twelve million, eight hundred eleven thousand, four hundred twenty-six".