13918845 has 32 divisors (see below), whose sum is σ = 23639040. Its totient is φ = 6981120.

The previous prime is 13918843. The next prime is 13918871. The reversal of 13918845 is 54881931.

13918845 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 13918845 - 2¹ = 13918843 is a prime.

It is a super-2 number, since 2×13918845² = 387468492268050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13918843) 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 31 ways as a sum of consecutive naturals, for example, 16801 + ... + 17609.

It is an arithmetic number, because the mean of its divisors is an integer number (738720).

Almost surely, 2^13918845 is an apocalyptic number.

13918845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13918845 is a deficient number, since it is larger than the sum of its proper divisors (9720195).

13918845 is a wasteful number, since it uses less digits than its factorization.

13918845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885.

The product of its digits is 34560, while the sum is 39.

The square root of 13918845 is about 3730.7968317774. The cubic root of 13918845 is about 240.5476210407.

The spelling of 13918845 in words is "thirteen million, nine hundred eighteen thousand, eight hundred forty-five".