13866036 has 24 divisors (see below), whose sum is σ = 33144384. Its totient is φ = 4509120.

The previous prime is 13866011. The next prime is 13866037. The reversal of 13866036 is 63066831.

It is a junction number, because it is equal to n+sod(n) for n = 13865988 and 13866006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13866037) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 13600 + ... + 14583.

It is an arithmetic number, because the mean of its divisors is an integer number (1381016).

Almost surely, 2^13866036 is an apocalyptic number.

It is an amenable number.

13866036 is an abundant number, since it is smaller than the sum of its proper divisors (19278348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13866036 is a wasteful number, since it uses less digits than its factorization.

13866036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28231 (or 28229 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 13866036 is about 3723.7126634583. The cubic root of 13866036 is about 240.2430177324.

The spelling of 13866036 in words is "thirteen million, eight hundred sixty-six thousand, thirty-six".