13440267 has 24 divisors (see below), whose sum is σ = 20367360. Its totient is φ = 8529840.

The previous prime is 13440241. The next prime is 13440269. The reversal of 13440267 is 76204431.

It is not a de Polignac number, because 13440267 - 2¹¹ = 13438219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13440267.

It is not an unprimeable number, because it can be changed into a prime (13440269) 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 in 23 ways as a sum of consecutive naturals, for example, 18334 + ... + 19052.

It is an arithmetic number, because the mean of its divisors is an integer number (848640).

Almost surely, 2^13440267 is an apocalyptic number.

13440267 is a deficient number, since it is larger than the sum of its proper divisors (6927093).

13440267 is a wasteful number, since it uses less digits than its factorization.

13440267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 13440267 is about 3666.0969708943. The cubic root of 13440267 is about 237.7584525318.

Adding to 13440267 its reverse (76204431), we get a palindrome (89644698).

It can be divided in two parts, 134 and 40267, that added together give a square (40401 = 201²).

The spelling of 13440267 in words is "thirteen million, four hundred forty thousand, two hundred sixty-seven".