13865432 has 64 divisors (see below), whose sum is σ = 31488000. Its totient is φ = 5715360.

The previous prime is 13865419. The next prime is 13865473. The reversal of 13865432 is 23456831.

13865432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 7.

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, 84983 + ... + 85145.

It is an arithmetic number, because the mean of its divisors is an integer number (492000).

Almost surely, 2^13865432 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 13865432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15744000).

13865432 is an abundant number, since it is smaller than the sum of its proper divisors (17622568).

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

13865432 is a wasteful number, since it uses less digits than its factorization.

13865432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 203 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 13865432 is about 3723.6315607213. The cubic root of 13865432 is about 240.2395293793.

The spelling of 13865432 in words is "thirteen million, eight hundred sixty-five thousand, four hundred thirty-two".