13428626 has 8 divisors (see below), whose sum is σ = 20161164. Its totient is φ = 6708240.

The previous prime is 13428617. The next prime is 13428641. The reversal of 13428626 is 62682431.

It can be written as a sum of positive squares in 2 ways, for example, as 12609601 + 819025 = 3551^2 + 905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13428592 and 13428601.

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 3 ways as a sum of consecutive naturals, for example, 596 + ... + 5216.

Almost surely, 2^13428626 is an apocalyptic number.

13428626 is a deficient number, since it is larger than the sum of its proper divisors (6732538).

13428626 is a wasteful number, since it uses less digits than its factorization.

13428626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076.

The product of its digits is 13824, while the sum is 32.

The square root of 13428626 is about 3664.5089711993. The cubic root of 13428626 is about 237.6897895703.

The spelling of 13428626 in words is "thirteen million, four hundred twenty-eight thousand, six hundred twenty-six".