12122438 has 8 divisors (see below), whose sum is σ = 18198432. Its totient is φ = 6056296.

The previous prime is 12122419. The next prime is 12122443. The reversal of 12122438 is 83422121.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3656 + ... + 6132.

It is an arithmetic number, because the mean of its divisors is an integer number (2274804).

Almost surely, 2^12122438 is an apocalyptic number.

12122438 is a deficient number, since it is larger than the sum of its proper divisors (6075994).

12122438 is a wasteful number, since it uses less digits than its factorization.

12122438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926.

The product of its digits is 768, while the sum is 23.

The square root of 12122438 is about 3481.7291681002. The cubic root of 12122438 is about 229.7188625445.

Adding to 12122438 its reverse (83422121), we get a palindrome (95544559).

The spelling of 12122438 in words is "twelve million, one hundred twenty-two thousand, four hundred thirty-eight".