12260405 has 8 divisors (see below), whose sum is σ = 14899200. Its totient is φ = 9683856.

The previous prime is 12260401. The next prime is 12260411. The reversal of 12260405 is 50406221.

It is a happy number.

12260405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12260405 - 2² = 12260401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12260401) 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, 15125 + ... + 15914.

It is an arithmetic number, because the mean of its divisors is an integer number (1862400).

Almost surely, 2^12260405 is an apocalyptic number.

It is an amenable number.

12260405 is a deficient number, since it is larger than the sum of its proper divisors (2638795).

12260405 is an equidigital number, since it uses as much as digits as its factorization.

12260405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31123.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 12260405 is about 3501.4861130669. The cubic root of 12260405 is about 230.5870636014.

Adding to 12260405 its reverse (50406221), we get a palindrome (62666626).

The spelling of 12260405 in words is "twelve million, two hundred sixty thousand, four hundred five".