13109426 has 16 divisors (see below), whose sum is σ = 21656160. Its totient is φ = 5902080.

The previous prime is 13109419. The next prime is 13109441. The reversal of 13109426 is 62490131.

It is a junction number, because it is equal to n+sod(n) for n = 13109395 and 13109404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (1353510).

Almost surely, 2^13109426 is an apocalyptic number.

13109426 is a deficient number, since it is larger than the sum of its proper divisors (8546734).

13109426 is a wasteful number, since it uses less digits than its factorization.

13109426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 13109426 is about 3620.6941323453. The cubic root of 13109426 is about 235.7913625763.

Adding to 13109426 its reverse (62490131), we get a palindrome (75599557).

The spelling of 13109426 in words is "thirteen million, one hundred nine thousand, four hundred twenty-six".