13240449 has 16 divisors (see below), whose sum is σ = 19699200. Its totient is φ = 8789328.

The previous prime is 13240421. The next prime is 13240453. The reversal of 13240449 is 94404231.

It is not a de Polignac number, because 13240449 - 2¹⁶ = 13174913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13240459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6352 + ... + 8174.

It is an arithmetic number, because the mean of its divisors is an integer number (1231200).

Almost surely, 2^13240449 is an apocalyptic number.

It is an amenable number.

13240449 is a deficient number, since it is larger than the sum of its proper divisors (6458751).

13240449 is a wasteful number, since it uses less digits than its factorization.

13240449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101 (or 2095 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13240449 is about 3638.7427773889. The cubic root of 13240449 is about 236.5743039266.

It can be divided in two parts, 13240 and 449, that added together give a square (13689 = 117²).

The spelling of 13240449 in words is "thirteen million, two hundred forty thousand, four hundred forty-nine".