12270238 has 8 divisors (see below), whose sum is σ = 19374120. Its totient is φ = 5812200.

The previous prime is 12270233. The next prime is 12270241. The reversal of 12270238 is 83207221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12270233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161413 + ... + 161488.

It is an arithmetic number, because the mean of its divisors is an integer number (2421765).

Almost surely, 2^12270238 is an apocalyptic number.

12270238 is a deficient number, since it is larger than the sum of its proper divisors (7103882).

12270238 is a wasteful number, since it uses less digits than its factorization.

12270238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322922.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 12270238 is about 3502.8899497415. The cubic root of 12270238 is about 230.6486917101.

Adding to 12270238 its reverse (83207221), we get a palindrome (95477459).

The spelling of 12270238 in words is "twelve million, two hundred seventy thousand, two hundred thirty-eight".