13240026 has 12 divisors (see below), whose sum is σ = 28686762. Its totient is φ = 4413336.

The previous prime is 13240021. The next prime is 13240049. The reversal of 13240026 is 62004231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7834401 + 5405625 = 2799^2 + 2325^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 735557 = 13240026 / (1 + 3 + 2 + 4 + 0 + 0 + 2 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 13239990 and 13240008.

It is not an unprimeable number, because it can be changed into a prime (13240021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367761 + ... + 367796.

Almost surely, 2^13240026 is an apocalyptic number.

13240026 is an abundant number, since it is smaller than the sum of its proper divisors (15446736).

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

13240026 is a wasteful number, since it uses less digits than its factorization.

13240026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735565 (or 735562 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13240026 is about 3638.6846524534. The cubic root of 13240026 is about 236.5717845760.

Adding to 13240026 its reverse (62004231), we get a palindrome (75244257).

The spelling of 13240026 in words is "thirteen million, two hundred forty thousand, twenty-six".