12198180 has 48 divisors (see below), whose sum is σ = 36167040. Its totient is φ = 3061248.

The previous prime is 12198161. The next prime is 12198217. The reversal of 12198180 is 8189121.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 4960 + ... + 6999.

It is an arithmetic number, because the mean of its divisors is an integer number (753480).

Almost surely, 2^12198180 is an apocalyptic number.

12198180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12198180 is an abundant number, since it is smaller than the sum of its proper divisors (23968860).

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

12198180 is a wasteful number, since it uses less digits than its factorization.

12198180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11988 (or 11986 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 30.

The square root of 12198180 is about 3492.5892973552. The cubic root of 12198180 is about 230.1963037377.

The spelling of 12198180 in words is "twelve million, one hundred ninety-eight thousand, one hundred eighty".