12042756 has 120 divisors (see below), whose sum is σ = 35777280. Its totient is φ = 3499200.

The previous prime is 12042739. The next prime is 12042761. The reversal of 12042756 is 65724021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 110430 + ... + 110538.

It is an arithmetic number, because the mean of its divisors is an integer number (298144).

Almost surely, 2^12042756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12042756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17888640).

12042756 is an abundant number, since it is smaller than the sum of its proper divisors (23734524).

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

12042756 is a wasteful number, since it uses less digits than its factorization.

12042756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 12042756 is about 3470.2674248536. The cubic root of 12042756 is about 229.2144340023.

Adding to 12042756 its reverse (65724021), we get a palindrome (77766777).

The spelling of 12042756 in words is "twelve million, forty-two thousand, seven hundred fifty-six".