13318407 has 6 divisors (see below), whose sum is σ = 19237712. Its totient is φ = 8878932.

The previous prime is 13318387. The next prime is 13318421. The reversal of 13318407 is 70481331.

13318407 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13318407 - 2¹⁶ = 13252871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13318457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 739903 + ... + 739920.

Almost surely, 2^13318407 is an apocalyptic number.

13318407 is a deficient number, since it is larger than the sum of its proper divisors (5919305).

13318407 is a wasteful number, since it uses less digits than its factorization.

13318407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479829 (or 1479826 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 13318407 is about 3649.4392719978. The cubic root of 13318407 is about 237.0377016345.

Adding to 13318407 its reverse (70481331), we get a palindrome (83799738).

The spelling of 13318407 in words is "thirteen million, three hundred eighteen thousand, four hundred seven".