13318449 has 16 divisors (see below), whose sum is σ = 19507200. Its totient is φ = 8045136.

The previous prime is 13318441. The next prime is 13318451. The reversal of 13318449 is 94481331.

13318449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13318449 - 2³ = 13318441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13318441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3769 + ... + 6390.

It is an arithmetic number, because the mean of its divisors is an integer number (1219200).

Almost surely, 2^13318449 is an apocalyptic number.

13318449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13318449 is a deficient number, since it is larger than the sum of its proper divisors (6188751).

13318449 is a wasteful number, since it uses less digits than its factorization.

13318449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10204.

The product of its digits is 10368, while the sum is 33.

The square root of 13318449 is about 3649.4450263019. The cubic root of 13318449 is about 237.0379508027.

The spelling of 13318449 in words is "thirteen million, three hundred eighteen thousand, four hundred forty-nine".