12405441 has 16 divisors (see below), whose sum is σ = 17381376. Its totient is φ = 7855056.

The previous prime is 12405433. The next prime is 12405467. The reversal of 12405441 is 14450421.

It is a happy number.

12405441 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12405441 - 2³ = 12405433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12405431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10696 + ... + 11798.

It is an arithmetic number, because the mean of its divisors is an integer number (1086336).

Almost surely, 2^12405441 is an apocalyptic number.

It is an amenable number.

12405441 is a deficient number, since it is larger than the sum of its proper divisors (4975935).

12405441 is a wasteful number, since it uses less digits than its factorization.

12405441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 12405441 is about 3522.1358576864. The cubic root of 12405441 is about 231.4927544781.

Adding to 12405441 its reverse (14450421), we get a palindrome (26855862).

The spelling of 12405441 in words is "twelve million, four hundred five thousand, four hundred forty-one".