12871944 has 96 divisors (see below), whose sum is σ = 36940800. Its totient is φ = 4043520.

The previous prime is 12871933. The next prime is 12872003. The reversal of 12871944 is 44917821.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12871899 and 12871908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162897 + ... + 162975.

It is an arithmetic number, because the mean of its divisors is an integer number (384800).

Almost surely, 2^12871944 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 12871944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18470400).

12871944 is an abundant number, since it is smaller than the sum of its proper divisors (24068856).

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

12871944 is a wasteful number, since it uses less digits than its factorization.

12871944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 188 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 12871944 is about 3587.7491551110. The cubic root of 12871944 is about 234.3588620355.

The spelling of 12871944 in words is "twelve million, eight hundred seventy-one thousand, nine hundred forty-four".