12041240 has 32 divisors (see below), whose sum is σ = 27503280. Its totient is φ = 4743552.

The previous prime is 12041233. The next prime is 12041257. The reversal of 12041240 is 4214021.

12041240 = 860² + 861² + ... + 875².

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 7 ways as a sum of consecutive naturals, for example, 434 + ... + 4926.

Almost surely, 2^12041240 is an apocalyptic number.

12041240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12041240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13751640).

12041240 is an abundant number, since it is smaller than the sum of its proper divisors (15462040).

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

12041240 is a wasteful number, since it uses less digits than its factorization.

12041240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571 (or 4567 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12041240 is about 3470.0489910086. The cubic root of 12041240 is about 229.2048153939.

Adding to 12041240 its reverse (4214021), we get a palindrome (16255261).

The spelling of 12041240 in words is "twelve million, forty-one thousand, two hundred forty".