13871232 has 48 divisors (see below), whose sum is σ = 39919230. Its totient is φ = 4623360.

The previous prime is 13871183. The next prime is 13871233. The reversal of 13871232 is 23217831.

It can be written as a sum of positive squares in only one way, i.e., 11128896 + 2742336 = 3336^2 + 1656^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×13871232² = 384822154395648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13871196 and 13871205.

It is not an unprimeable number, because it can be changed into a prime (13871233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4869 + ... + 7172.

Almost surely, 2^13871232 is an apocalyptic number.

13871232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13871232 is an abundant number, since it is smaller than the sum of its proper divisors (26047998).

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

13871232 is a wasteful number, since it uses less digits than its factorization.

13871232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12061 (or 12046 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 13871232 is about 3724.4102888914. The cubic root of 13871232 is about 240.2730226266.

The spelling of 13871232 in words is "thirteen million, eight hundred seventy-one thousand, two hundred thirty-two".