13828426 has 4 divisors (see below), whose sum is σ = 20742642. Its totient is φ = 6914212.

The previous prime is 13828411. The next prime is 13828459. The reversal of 13828426 is 62482831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12924025 + 904401 = 3595^2 + 951^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13828391 and 13828400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3457105 + ... + 3457108.

Almost surely, 2^13828426 is an apocalyptic number.

13828426 is a deficient number, since it is larger than the sum of its proper divisors (6914216).

13828426 is an equidigital number, since it uses as much as digits as its factorization.

13828426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6914215.

The product of its digits is 18432, while the sum is 34.

The square root of 13828426 is about 3718.6591669579. The cubic root of 13828426 is about 240.0256106929.

The spelling of 13828426 in words is "thirteen million, eight hundred twenty-eight thousand, four hundred twenty-six".