12404442 has 8 divisors (see below), whose sum is σ = 24808896. Its totient is φ = 4134812.

The previous prime is 12404437. The next prime is 12404449. The reversal of 12404442 is 24440421.

It is a sphenic number, since it is the product of 3 distinct primes.

12404442 is an admirable number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033698 + ... + 1033709.

It is an arithmetic number, because the mean of its divisors is an integer number (3101112).

Almost surely, 2^12404442 is an apocalyptic number.

12404442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12404442 is a wasteful number, since it uses less digits than its factorization.

12404442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067412.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 12404442 is about 3521.9940374737. The cubic root of 12404442 is about 231.4865403374.

Adding to 12404442 its reverse (24440421), we get a palindrome (36844863).

The spelling of 12404442 in words is "twelve million, four hundred four thousand, four hundred forty-two".