12040242 has 8 divisors (see below), whose sum is σ = 24080496. Its totient is φ = 4013412.

The previous prime is 12040213. The next prime is 12040253. The reversal of 12040242 is 24204021.

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

12040242 is an admirable 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, 1003348 + ... + 1003359.

It is an arithmetic number, because the mean of its divisors is an integer number (3010062).

Almost surely, 2^12040242 is an apocalyptic number.

12040242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12040242 is a wasteful number, since it uses less digits than its factorization.

12040242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006712.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12040242 is about 3469.9051860245. The cubic root of 12040242 is about 229.1984829141.

Adding to 12040242 its reverse (24204021), we get a palindrome (36244263).

The spelling of 12040242 in words is "twelve million, forty thousand, two hundred forty-two".