12564042 has 16 divisors (see below), whose sum is σ = 25431840. Its totient is φ = 4137392.

The previous prime is 12564017. The next prime is 12564061. The reversal of 12564042 is 24046521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12117 + ... + 13112.

It is an arithmetic number, because the mean of its divisors is an integer number (1589490).

Almost surely, 2^12564042 is an apocalyptic number.

12564042 is an abundant number, since it is smaller than the sum of its proper divisors (12867798).

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

12564042 is a wasteful number, since it uses less digits than its factorization.

12564042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25317.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 12564042 is about 3544.5792416026. The cubic root of 12564042 is about 232.4751089089.

The spelling of 12564042 in words is "twelve million, five hundred sixty-four thousand, forty-two".