12404440 has 16 divisors (see below), whose sum is σ = 27910080. Its totient is φ = 4961760.

The previous prime is 12404437. The next prime is 12404449. The reversal of 12404440 is 4440421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 155016 + ... + 155095.

It is an arithmetic number, because the mean of its divisors is an integer number (1744380).

Almost surely, 2^12404440 is an apocalyptic number.

12404440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12404440 is an abundant number, since it is smaller than the sum of its proper divisors (15505640).

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

12404440 is a wasteful number, since it uses less digits than its factorization.

12404440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310122 (or 310118 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 12404440 is about 3521.9937535436. The cubic root of 12404440 is about 231.4865278963.

Adding to 12404440 its reverse (4440421), we get a palindrome (16844861).

The spelling of 12404440 in words is "twelve million, four hundred four thousand, four hundred forty".