12704042 has 8 divisors (see below), whose sum is σ = 20521956. Its totient is φ = 5863392.

The previous prime is 12704023. The next prime is 12704089. The reversal of 12704042 is 24040721.

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 461041 = 3499^2 + 679^2 .

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

It is a super-2 number, since 2×12704042² = 322785366275528, which contains 22 as substring.

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, 244283 + ... + 244334.

Almost surely, 2^12704042 is an apocalyptic number.

12704042 is a deficient number, since it is larger than the sum of its proper divisors (7817914).

12704042 is a wasteful number, since it uses less digits than its factorization.

12704042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488632.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 12704042 is about 3564.2729974007. The cubic root of 12704042 is about 233.3354045168.

Adding to 12704042 its reverse (24040721), we get a palindrome (36744763).

The spelling of 12704042 in words is "twelve million, seven hundred four thousand, forty-two".