13399845 has 16 divisors (see below), whose sum is σ = 22568640. Its totient is φ = 6770304.

The previous prime is 13399829. The next prime is 13399849. The reversal of 13399845 is 54899331.

13399845 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13399845 - 2⁴ = 13399829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13399797 and 13399806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13399849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23224 + ... + 23793.

It is an arithmetic number, because the mean of its divisors is an integer number (1410540).

Almost surely, 2^13399845 is an apocalyptic number.

13399845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13399845 is a deficient number, since it is larger than the sum of its proper divisors (9168795).

13399845 is a wasteful number, since it uses less digits than its factorization.

13399845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47044.

The product of its digits is 116640, while the sum is 42.

The square root of 13399845 is about 3660.5798720968. The cubic root of 13399845 is about 237.5198579887.

The spelling of 13399845 in words is "thirteen million, three hundred ninety-nine thousand, eight hundred forty-five".