12042818 has 8 divisors (see below), whose sum is σ = 18647040. Its totient is φ = 5827140.

The previous prime is 12042809. The next prime is 12042847. The reversal of 12042818 is 81824021.

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

It is a super-2 number, since 2×12042818² = 290058930762248, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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, 97058 + ... + 97181.

It is an arithmetic number, because the mean of its divisors is an integer number (2330880).

Almost surely, 2^12042818 is an apocalyptic number.

12042818 is a deficient number, since it is larger than the sum of its proper divisors (6604222).

12042818 is a wasteful number, since it uses less digits than its factorization.

12042818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194272.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 12042818 is about 3470.2763578712. The cubic root of 12042818 is about 229.2148273583.

Adding to 12042818 its reverse (81824021), we get a palindrome (93866839).

The spelling of 12042818 in words is "twelve million, forty-two thousand, eight hundred eighteen".