13871412 has 84 divisors (see below), whose sum is σ = 37459296. Its totient is φ = 4490640.

The previous prime is 13871399. The next prime is 13871423. The reversal of 13871412 is 21417831.

13871412 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 195337 + ... + 195407.

It is an arithmetic number, because the mean of its divisors is an integer number (445944).

Almost surely, 2^13871412 is an apocalyptic number.

13871412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13871412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18729648).

13871412 is an abundant number, since it is smaller than the sum of its proper divisors (23587884).

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

13871412 is an equidigital number, since it uses as much as digits as its factorization.

13871412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 143 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 13871412 is about 3724.4344537124. The cubic root of 13871412 is about 240.2740619228.

The spelling of 13871412 in words is "thirteen million, eight hundred seventy-one thousand, four hundred twelve".