12043240 has 64 divisors (see below), whose sum is σ = 29963520. Its totient is φ = 4320000.

The previous prime is 12043219. The next prime is 12043267. The reversal of 12043240 is 4234021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44305 + ... + 44575.

It is an arithmetic number, because the mean of its divisors is an integer number (468180).

Almost surely, 2^12043240 is an apocalyptic number.

12043240 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 12043240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14981760).

12043240 is an abundant number, since it is smaller than the sum of its proper divisors (17920280).

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

12043240 is a wasteful number, since it uses less digits than its factorization.

12043240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12043240 is about 3470.3371594126. The cubic root of 12043240 is about 229.2175046809.

Adding to 12043240 its reverse (4234021), we get a palindrome (16277261).

It can be divided in two parts, 1204 and 3240, that added together give a palindrome (4444).

The spelling of 12043240 in words is "twelve million, forty-three thousand, two hundred forty".