13040626 has 4 divisors (see below), whose sum is σ = 19560942. Its totient is φ = 6520312.

The previous prime is 13040623. The next prime is 13040627. The reversal of 13040626 is 62604031.

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., 9296401 + 3744225 = 3049^2 + 1935^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 13040597 and 13040606.

It is not an unprimeable number, because it can be changed into a prime (13040623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3260155 + ... + 3260158.

Almost surely, 2^13040626 is an apocalyptic number.

13040626 is a deficient number, since it is larger than the sum of its proper divisors (6520316).

13040626 is an equidigital number, since it uses as much as digits as its factorization.

13040626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6520315.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 13040626 is about 3611.1806933467. The cubic root of 13040626 is about 235.3781507911.

Adding to 13040626 its reverse (62604031), we get a palindrome (75644657).

The spelling of 13040626 in words is "thirteen million, forty thousand, six hundred twenty-six".