12942036 has 18 divisors (see below), whose sum is σ = 32714682. Its totient is φ = 4314000.

The previous prime is 12942023. The next prime is 12942047. The reversal of 12942036 is 63024921.

It can be written as a sum of positive squares in only one way, i.e., 12744900 + 197136 = 3570^2 + 444^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179715 + ... + 179786.

Almost surely, 2^12942036 is an apocalyptic number.

It is an amenable number.

12942036 is an abundant number, since it is smaller than the sum of its proper divisors (19772646).

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

12942036 is a wasteful number, since it uses less digits than its factorization.

12942036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359511 (or 359506 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 12942036 is about 3597.5041348135. The cubic root of 12942036 is about 234.7834794564.

Adding to 12942036 its reverse (63024921), we get a palindrome (75966957).

The spelling of 12942036 in words is "twelve million, nine hundred forty-two thousand, thirty-six".