12199680 has 144 divisors (see below), whose sum is σ = 43414560. Its totient is φ = 3244032.

The previous prime is 12199669. The next prime is 12199697. The reversal of 12199680 is 8699121.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 34384 + ... + 34736.

It is an arithmetic number, because the mean of its divisors is an integer number (301490).

Almost surely, 2^12199680 is an apocalyptic number.

12199680 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 12199680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21707280).

12199680 is an abundant number, since it is smaller than the sum of its proper divisors (31214880).

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

12199680 is an equidigital number, since it uses as much as digits as its factorization.

12199680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 12199680 is about 3492.8040311475. The cubic root of 12199680 is about 230.2057390333.

The spelling of 12199680 in words is "twelve million, one hundred ninety-nine thousand, six hundred eighty".