13806426 has 32 divisors (see below), whose sum is σ = 29283840. Its totient is φ = 4327344.

The previous prime is 13806409. The next prime is 13806433. The reversal of 13806426 is 62460831.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13806393 and 13806402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18211 + ... + 18953.

It is an arithmetic number, because the mean of its divisors is an integer number (915120).

Almost surely, 2^13806426 is an apocalyptic number.

13806426 is an abundant number, since it is smaller than the sum of its proper divisors (15477414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13806426 is a wasteful number, since it uses less digits than its factorization.

13806426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 13806426 is about 3715.6999340636. The cubic root of 13806426 is about 239.8982554841.

The spelling of 13806426 in words is "thirteen million, eight hundred six thousand, four hundred twenty-six".