13449424 has 10 divisors (see below), whose sum is σ = 26058290. Its totient is φ = 6724704.

The previous prime is 13449421. The next prime is 13449433. The reversal of 13449424 is 42494431.

It can be written as a sum of positive squares in only one way, i.e., 13395600 + 53824 = 3660^2 + 232^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13449421) 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 as a sum of consecutive naturals, namely, 420279 + ... + 420310.

It is an arithmetic number, because the mean of its divisors is an integer number (2605829).

Almost surely, 2^13449424 is an apocalyptic number.

It is an amenable number.

13449424 is a deficient number, since it is larger than the sum of its proper divisors (12608866).

13449424 is an equidigital number, since it uses as much as digits as its factorization.

13449424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840597 (or 840591 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 13449424 is about 3667.3456341065. The cubic root of 13449424 is about 237.8124360798.

The spelling of 13449424 in words is "thirteen million, four hundred forty-nine thousand, four hundred twenty-four".