12200238 has 12 divisors (see below), whose sum is σ = 26433888. Its totient is φ = 4066740.

The previous prime is 12200179. The next prime is 12200239. The reversal of 12200238 is 83200221.

It is a happy number.

12200238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 677791 = 12200238 / (1 + 2 + 2 + 0 + 0 + 2 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 12200238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 338878 + ... + 338913.

It is an arithmetic number, because the mean of its divisors is an integer number (2202824).

Almost surely, 2^12200238 is an apocalyptic number.

12200238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12200238 is an abundant number, since it is smaller than the sum of its proper divisors (14233650).

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

12200238 is a wasteful number, since it uses less digits than its factorization.

12200238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677799 (or 677796 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12200238 is about 3492.8839087493. The cubic root of 12200238 is about 230.2092487659.

Adding to 12200238 its reverse (83200221), we get a palindrome (95400459).

The spelling of 12200238 in words is "twelve million, two hundred thousand, two hundred thirty-eight".