13909226 has 4 divisors (see below), whose sum is σ = 20863842. Its totient is φ = 6954612.

The previous prime is 13909211. The next prime is 13909237. The reversal of 13909226 is 62290931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62290931 = 41 ⋅1519291.

It can be written as a sum of positive squares in only one way, i.e., 11662225 + 2247001 = 3415^2 + 1499^2 .

It is a super-3 number, since 3×13909226³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13909192 and 13909201.

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 as a sum of consecutive naturals, namely, 3477305 + ... + 3477308.

Almost surely, 2^13909226 is an apocalyptic number.

13909226 is a deficient number, since it is larger than the sum of its proper divisors (6954616).

13909226 is an equidigital number, since it uses as much as digits as its factorization.

13909226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954615.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 13909226 is about 3729.5074741848. The cubic root of 13909226 is about 240.4921959250.

The spelling of 13909226 in words is "thirteen million, nine hundred nine thousand, two hundred twenty-six".