12860220 has 48 divisors (see below), whose sum is σ = 37578240. Its totient is φ = 3279936.

The previous prime is 12860219. The next prime is 12860227. The reversal of 12860220 is 2206821.

12860220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12860227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3280 + ... + 6039.

It is an arithmetic number, because the mean of its divisors is an integer number (782880).

Almost surely, 2^12860220 is an apocalyptic number.

12860220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12860220 is an abundant number, since it is smaller than the sum of its proper divisors (24718020).

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

12860220 is a wasteful number, since it uses less digits than its factorization.

12860220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354 (or 9352 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12860220 is about 3586.1148894033. The cubic root of 12860220 is about 234.2876876551.

The spelling of 12860220 in words is "twelve million, eight hundred sixty thousand, two hundred twenty".