12192238 has 16 divisors (see below), whose sum is σ = 19532160. Its totient is φ = 5695200.

The previous prime is 12192197. The next prime is 12192239. The reversal of 12192238 is 83229121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192239) 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, 1593 + ... + 5188.

It is an arithmetic number, because the mean of its divisors is an integer number (1220760).

Almost surely, 2^12192238 is an apocalyptic number.

12192238 is a deficient number, since it is larger than the sum of its proper divisors (7339922).

12192238 is a wasteful number, since it uses less digits than its factorization.

12192238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843.

The product of its digits is 1728, while the sum is 28.

The square root of 12192238 is about 3491.7385354577. The cubic root of 12192238 is about 230.1589197838.

The spelling of 12192238 in words is "twelve million, one hundred ninety-two thousand, two hundred thirty-eight".