13246426 has 4 divisors (see below), whose sum is σ = 19869642. Its totient is φ = 6623212.

The previous prime is 13246421. The next prime is 13246427. The reversal of 13246426 is 62464231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62464231 = 29 ⋅2153939.

It can be written as a sum of positive squares in only one way, i.e., 11215801 + 2030625 = 3349^2 + 1425^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13246394 and 13246403.

It is not an unprimeable number, because it can be changed into a prime (13246421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311605 + ... + 3311608.

Almost surely, 2^13246426 is an apocalyptic number.

13246426 is a deficient number, since it is larger than the sum of its proper divisors (6623216).

13246426 is an equidigital number, since it uses as much as digits as its factorization.

13246426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6623215.

The product of its digits is 6912, while the sum is 28.

The square root of 13246426 is about 3639.5639848751. The cubic root of 13246426 is about 236.6098966747.

It can be divided in two parts, 1324 and 6426, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 13246426 in words is "thirteen million, two hundred forty-six thousand, four hundred twenty-six".