13956449 has 4 divisors (see below), whose sum is σ = 15030036. Its totient is φ = 12882864.

The previous prime is 13956443. The next prime is 13956463. The reversal of 13956449 is 94465931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94465931 = 7 ⋅13495133.

It can be written as a sum of positive squares in 2 ways, for example, as 7118224 + 6838225 = 2668^2 + 2615^2 .

It is a cyclic number.

It is not a de Polignac number, because 13956449 - 2¹² = 13952353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13956443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 536774 + ... + 536799.

It is an arithmetic number, because the mean of its divisors is an integer number (3757509).

Almost surely, 2^13956449 is an apocalyptic number.

It is an amenable number.

13956449 is a deficient number, since it is larger than the sum of its proper divisors (1073587).

13956449 is a wasteful number, since it uses less digits than its factorization.

13956449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073586.

The product of its digits is 116640, while the sum is 41.

The square root of 13956449 is about 3735.8331065507. The cubic root of 13956449 is about 240.7640522877.

The spelling of 13956449 in words is "thirteen million, nine hundred fifty-six thousand, four hundred forty-nine".