12860500 has 72 divisors (see below), whose sum is σ = 30171960. Its totient is φ = 4787200.

The previous prime is 12860479. The next prime is 12860501. The reversal of 12860500 is 506821.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 7496644 + 5363856 = 2738^2 + 2316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12860501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144456 + ... + 144544.

It is an arithmetic number, because the mean of its divisors is an integer number (419055).

Almost surely, 2^12860500 is an apocalyptic number.

12860500 is a gapful number since it is divisible by the number (10) 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 12860500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15085980).

12860500 is an abundant number, since it is smaller than the sum of its proper divisors (17311460).

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

12860500 is a wasteful number, since it uses less digits than its factorization.

12860500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12860500 is about 3586.1539286539. The cubic root of 12860500 is about 234.2893879909.

The spelling of 12860500 in words is "twelve million, eight hundred sixty thousand, five hundred".