13280326 has 4 divisors (see below), whose sum is σ = 19920492. Its totient is φ = 6640162.

The previous prime is 13280321. The next prime is 13280327. The reversal of 13280326 is 62308231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62308231 = 53 ⋅1175627.

It is a self number, because there is not a number n which added to its sum of digits gives 13280326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13280321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3320080 + ... + 3320083.

It is an arithmetic number, because the mean of its divisors is an integer number (4980123).

Almost surely, 2^13280326 is an apocalyptic number.

13280326 is a deficient number, since it is larger than the sum of its proper divisors (6640166).

13280326 is an equidigital number, since it uses as much as digits as its factorization.

13280326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640165.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 13280326 is about 3644.2181603192. The cubic root of 13280326 is about 236.8115672422.

Adding to 13280326 its reverse (62308231), we get a palindrome (75588557).

The spelling of 13280326 in words is "thirteen million, two hundred eighty thousand, three hundred twenty-six".