12570042 has 8 divisors (see below), whose sum is σ = 25140096. Its totient is φ = 4190012.

The previous prime is 12570037. The next prime is 12570043. The reversal of 12570042 is 24007521.

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

12570042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12570043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047498 + ... + 1047509.

It is an arithmetic number, because the mean of its divisors is an integer number (3142512).

Almost surely, 2^12570042 is an apocalyptic number.

12570042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12570042 is a wasteful number, since it uses less digits than its factorization.

12570042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095012.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12570042 is about 3545.4255033776. The cubic root of 12570042 is about 232.5121094398.

Adding to 12570042 its reverse (24007521), we get a palindrome (36577563).

The spelling of 12570042 in words is "twelve million, five hundred seventy thousand, forty-two".