12042868 has 12 divisors (see below), whose sum is σ = 22314852. Its totient is φ = 5667200.

The previous prime is 12042847. The next prime is 12042887. The reversal of 12042868 is 86824021.

It can be written as a sum of positive squares in 2 ways, for example, as 5702544 + 6340324 = 2388^2 + 2518^2 .

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, 88483 + ... + 88618.

It is an arithmetic number, because the mean of its divisors is an integer number (1859571).

Almost surely, 2^12042868 is an apocalyptic number.

It is an amenable number.

12042868 is a deficient number, since it is larger than the sum of its proper divisors (10271984).

12042868 is a wasteful number, since it uses less digits than its factorization.

12042868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177122 (or 177120 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 12042868 is about 3470.2835619010. The cubic root of 12042868 is about 229.2151445799.

Adding to 12042868 its reverse (86824021), we get a palindrome (98866889).

The spelling of 12042868 in words is "twelve million, forty-two thousand, eight hundred sixty-eight".