13244746 has 4 divisors (see below), whose sum is σ = 19867122. Its totient is φ = 6622372.

The previous prime is 13244687. The next prime is 13244773. The reversal of 13244746 is 64744231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64744231 = 4993 ⋅12967.

It can be written as a sum of positive squares in only one way, i.e., 11526025 + 1718721 = 3395^2 + 1311^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311185 + ... + 3311188.

Almost surely, 2^13244746 is an apocalyptic number.

13244746 is a deficient number, since it is larger than the sum of its proper divisors (6622376).

13244746 is an equidigital number, since it uses as much as digits as its factorization.

13244746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622375.

The product of its digits is 16128, while the sum is 31.

The square root of 13244746 is about 3639.3331806802. Note that the first 3 decimals coincide. The cubic root of 13244746 is about 236.5998934372.

Adding to 13244746 its reverse (64744231), we get a palindrome (77988977).

The spelling of 13244746 in words is "thirteen million, two hundred forty-four thousand, seven hundred forty-six".