12441040 has 40 divisors (see below), whose sum is σ = 29638728. Its totient is φ = 4853760.

The previous prime is 12441031. The next prime is 12441049. The reversal of 12441040 is 4014421.

It is an interprime number because it is at equal distance from previous prime (12441031) and next prime (12441049).

It can be written as a sum of positive squares in 4 ways, for example, as 219024 + 12222016 = 468^2 + 3496^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12441049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1384 + ... + 5176.

Almost surely, 2^12441040 is an apocalyptic number.

12441040 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 12441040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14819364).

12441040 is an abundant number, since it is smaller than the sum of its proper divisors (17197688).

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

12441040 is a wasteful number, since it uses less digits than its factorization.

12441040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847 (or 3841 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 12441040 is about 3527.1858471025. The cubic root of 12441040 is about 231.7139756968.

Adding to 12441040 its reverse (4014421), we get a palindrome (16455461).

The spelling of 12441040 in words is "twelve million, four hundred forty-one thousand, forty".