12040756 has 48 divisors (see below), whose sum is σ = 27314560. Its totient is φ = 4510080.

The previous prime is 12040751. The next prime is 12040759. The reversal of 12040756 is 65704021.

It is a self number, because there is not a number n which added to its sum of digits gives 12040756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6046 + ... + 7786.

Almost surely, 2^12040756 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 12040756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13657280).

12040756 is an abundant number, since it is smaller than the sum of its proper divisors (15273804).

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

12040756 is a wasteful number, since it uses less digits than its factorization.

12040756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12040756 is about 3469.9792506584. The cubic root of 12040756 is about 229.2017443752.

Adding to 12040756 its reverse (65704021), we get a palindrome (77744777).

The spelling of 12040756 in words is "twelve million, forty thousand, seven hundred fifty-six".