13938386 has 32 divisors (see below), whose sum is σ = 26974080. Its totient is φ = 5241600.

The previous prime is 13938383. The next prime is 13938403. The reversal of 13938386 is 68383931.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13938383) 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, 2906 + ... + 6026.

It is an arithmetic number, because the mean of its divisors is an integer number (842940).

Almost surely, 2^13938386 is an apocalyptic number.

13938386 is a deficient number, since it is larger than the sum of its proper divisors (13035694).

13938386 is a wasteful number, since it uses less digits than its factorization.

13938386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170.

The product of its digits is 93312, while the sum is 41.

The square root of 13938386 is about 3733.4147907780. The cubic root of 13938386 is about 240.6601385914.

It can be divided in two parts, 1393 and 8386, that added together give a palindrome (9779).

The spelling of 13938386 in words is "thirteen million, nine hundred thirty-eight thousand, three hundred eighty-six".