12290338 has 8 divisors (see below), whose sum is σ = 18450432. Its totient is φ = 6140196.

The previous prime is 12290323. The next prime is 12290339. The reversal of 12290338 is 83309221.

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

It is not an unprimeable number, because it can be changed into a prime (12290339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3231 + ... + 5917.

It is an arithmetic number, because the mean of its divisors is an integer number (2306304).

Almost surely, 2^12290338 is an apocalyptic number.

12290338 is a deficient number, since it is larger than the sum of its proper divisors (6160094).

12290338 is a wasteful number, since it uses less digits than its factorization.

12290338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4976.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 12290338 is about 3505.7578353332. The cubic root of 12290338 is about 230.7745656487.

Adding to 12290338 its reverse (83309221), we get a palindrome (95599559).

The spelling of 12290338 in words is "twelve million, two hundred ninety thousand, three hundred thirty-eight".