12199668 has 24 divisors (see below), whose sum is σ = 30655968. Its totient is φ = 3753696.

The previous prime is 12199643. The next prime is 12199669. The reversal of 12199668 is 86699121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12199669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38946 + ... + 39257.

It is an arithmetic number, because the mean of its divisors is an integer number (1277332).

Almost surely, 2^12199668 is an apocalyptic number.

It is an amenable number.

12199668 is an abundant number, since it is smaller than the sum of its proper divisors (18456300).

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

12199668 is a wasteful number, since it uses less digits than its factorization.

12199668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78223 (or 78221 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 12199668 is about 3492.8023133295. The cubic root of 12199668 is about 230.2056635540.

The spelling of 12199668 in words is "twelve million, one hundred ninety-nine thousand, six hundred sixty-eight".