12980000 has 120 divisors (see below), whose sum is σ = 35426160. Its totient is φ = 4640000.

The previous prime is 12979987. The next prime is 12980029. The reversal of 12980000 is 8921.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 219971 + ... + 220029.

It is an arithmetic number, because the mean of its divisors is an integer number (295218).

Almost surely, 2^12980000 is an apocalyptic number.

12980000 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 12980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17713080).

12980000 is an abundant number, since it is smaller than the sum of its proper divisors (22446160).

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

12980000 is an equidigital number, since it uses as much as digits as its factorization.

12980000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12980000 is about 3602.7767069304. The cubic root of 12980000 is about 235.0128256166.

Adding to 12980000 its reverse (8921), we get a palindrome (12988921).

The spelling of 12980000 in words is "twelve million, nine hundred eighty thousand".