13868436 has 12 divisors (see below), whose sum is σ = 32359712. Its totient is φ = 4622808.

The previous prime is 13868419. The next prime is 13868443. The reversal of 13868436 is 63486831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13868394 and 13868403.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 577840 + ... + 577863.

Almost surely, 2^13868436 is an apocalyptic number.

It is an amenable number.

13868436 is an abundant number, since it is smaller than the sum of its proper divisors (18491276).

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

13868436 is a wasteful number, since it uses less digits than its factorization.

13868436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155710 (or 1155708 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 13868436 is about 3724.0349085367. The cubic root of 13868436 is about 240.2568777373.

The spelling of 13868436 in words is "thirteen million, eight hundred sixty-eight thousand, four hundred thirty-six".