12694426 has 8 divisors (see below), whose sum is σ = 19255860. Its totient is φ = 6275808.

The previous prime is 12694421. The next prime is 12694439. The reversal of 12694426 is 62449621.

12694426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11594025 + 1100401 = 3405^2 + 1049^2 .

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

It is a super-2 number, since 2×12694426² = 322296902938952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12694391 and 12694400.

It is not an unprimeable number, because it can be changed into a prime (12694421) 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, 35481 + ... + 35836.

Almost surely, 2^12694426 is an apocalyptic number.

12694426 is a deficient number, since it is larger than the sum of its proper divisors (6561434).

12694426 is an equidigital number, since it uses as much as digits as its factorization.

12694426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71408.

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

The square root of 12694426 is about 3562.9237993536. The cubic root of 12694426 is about 233.2765172323.

The spelling of 12694426 in words is "twelve million, six hundred ninety-four thousand, four hundred twenty-six".