13440368 has 10 divisors (see below), whose sum is σ = 26040744. Its totient is φ = 6720176.

The previous prime is 13440341. The next prime is 13440379. The reversal of 13440368 is 86304431.

It is a self number, because there is not a number n which added to its sum of digits gives 13440368.

It is a congruent number.

It is an unprimeable number.

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, 419996 + ... + 420027.

Almost surely, 2^13440368 is an apocalyptic number.

It is an amenable number.

13440368 is a deficient number, since it is larger than the sum of its proper divisors (12600376).

13440368 is an equidigital number, since it uses as much as digits as its factorization.

13440368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840031 (or 840025 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 13440368 is about 3666.1107457359. The cubic root of 13440368 is about 237.7590480940.

Adding to 13440368 its reverse (86304431), we get a palindrome (99744799).

The spelling of 13440368 in words is "thirteen million, four hundred forty thousand, three hundred sixty-eight".