13226445 has 24 divisors (see below), whose sum is σ = 23036832. Its totient is φ = 7020000.

The previous prime is 13226419. The next prime is 13226467. The reversal of 13226445 is 54462231.

13226445 is a `hidden beast` number, since 13 + 2 + 2 + 644 + 5 = 666.

It is not a de Polignac number, because 13226445 - 2⁸ = 13226189 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 10710 + ... + 11880.

It is an arithmetic number, because the mean of its divisors is an integer number (959868).

Almost surely, 2^13226445 is an apocalyptic number.

13226445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13226445 is a deficient number, since it is larger than the sum of its proper divisors (9810387).

13226445 is a wasteful number, since it uses less digits than its factorization.

13226445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433 (or 1430 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 13226445 is about 3636.8179772983. The cubic root of 13226445 is about 236.4908688091.

Adding to 13226445 its reverse (54462231), we get a palindrome (67688676).

The spelling of 13226445 in words is "thirteen million, two hundred twenty-six thousand, four hundred forty-five".