12292438 has 8 divisors (see below), whose sum is σ = 18526680. Its totient is φ = 6116880.

The previous prime is 12292421. The next prime is 12292447. The reversal of 12292438 is 83429221.

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

It is a super-2 number, since 2×12292438² = 302208063967688, which contains 22 as substring.

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, 14143 + ... + 14986.

It is an arithmetic number, because the mean of its divisors is an integer number (2315835).

Almost surely, 2^12292438 is an apocalyptic number.

12292438 is a deficient number, since it is larger than the sum of its proper divisors (6234242).

12292438 is a wasteful number, since it uses less digits than its factorization.

12292438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29342.

The product of its digits is 6912, while the sum is 31.

The square root of 12292438 is about 3506.0573298222. The cubic root of 12292438 is about 230.7877087369.

The spelling of 12292438 in words is "twelve million, two hundred ninety-two thousand, four hundred thirty-eight".