13868724 has 48 divisors (see below), whose sum is σ = 34151040. Its totient is φ = 4371840.

The previous prime is 13868711. The next prime is 13868731. The reversal of 13868724 is 42786831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29854 + ... + 30314.

It is an arithmetic number, because the mean of its divisors is an integer number (711480).

Almost surely, 2^13868724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13868724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17075520).

13868724 is an abundant number, since it is smaller than the sum of its proper divisors (20282316).

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

13868724 is a wasteful number, since it uses less digits than its factorization.

13868724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 598 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 13868724 is about 3724.0735760723. The cubic root of 13868724 is about 240.2585408304.

The spelling of 13868724 in words is "thirteen million, eight hundred sixty-eight thousand, seven hundred twenty-four".