12012980 has 48 divisors (see below), whose sum is σ = 29393280. Its totient is φ = 4038528.

The previous prime is 12012971. The next prime is 12013009. The reversal of 12012980 is 8921021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6611 + ... + 8229.

It is an arithmetic number, because the mean of its divisors is an integer number (612360).

Almost surely, 2^12012980 is an apocalyptic number.

12012980 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 12012980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14696640).

12012980 is an abundant number, since it is smaller than the sum of its proper divisors (17380300).

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

12012980 is a wasteful number, since it uses less digits than its factorization.

12012980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688 (or 1686 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 12012980 is about 3465.9746104090. The cubic root of 12012980 is about 229.0253653818.

The spelling of 12012980 in words is "twelve million, twelve thousand, nine hundred eighty".