12340042 has 24 divisors (see below), whose sum is σ = 21872160. Its totient is φ = 5176080.

The previous prime is 12340033. The next prime is 12340061. The reversal of 12340042 is 24004321.

12340042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12339998 and 12340025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2059 + ... + 5377.

It is an arithmetic number, because the mean of its divisors is an integer number (911340).

Almost surely, 2^12340042 is an apocalyptic number.

12340042 is a deficient number, since it is larger than the sum of its proper divisors (9532118).

12340042 is a wasteful number, since it uses less digits than its factorization.

12340042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358 (or 3345 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12340042 is about 3512.8395921249. The cubic root of 12340042 is about 231.0852430538.

Adding to 12340042 its reverse (24004321), we get a palindrome (36344363).

The spelling of 12340042 in words is "twelve million, three hundred forty thousand, forty-two".