12018880 has 84 divisors (see below), whose sum is σ = 30339792. Its totient is φ = 4533760.

The previous prime is 12018871. The next prime is 12018901. The reversal of 12018880 is 8881021.

12018880 = 69³ + 70³ + ... + 91³.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169245 + ... + 169315.

It is an arithmetic number, because the mean of its divisors is an integer number (361188).

Almost surely, 2^12018880 is an apocalyptic number.

12018880 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 12018880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15169896).

12018880 is an abundant number, since it is smaller than the sum of its proper divisors (18320912).

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

12018880 is an equidigital number, since it uses as much as digits as its factorization.

12018880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 12018880 is about 3466.8256373807. The cubic root of 12018880 is about 229.0628534018.

The spelling of 12018880 in words is "twelve million, eighteen thousand, eight hundred eighty".