12800042 has 8 divisors (see below), whose sum is σ = 19244736. Its totient is φ = 6385132.

The previous prime is 12800041. The next prime is 12800063. The reversal of 12800042 is 24000821.

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

It is not an unprimeable number, because it can be changed into a prime (12800041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6338 + ... + 8109.

It is an arithmetic number, because the mean of its divisors is an integer number (2405592).

Almost surely, 2^12800042 is an apocalyptic number.

12800042 is a deficient number, since it is larger than the sum of its proper divisors (6444694).

12800042 is a wasteful number, since it uses less digits than its factorization.

12800042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14892.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 12800042 is about 3577.7146336733. The cubic root of 12800042 is about 233.9216749083.

Adding to 12800042 its reverse (24000821), we get a palindrome (36800863).

The spelling of 12800042 in words is "twelve million, eight hundred thousand, forty-two".