12404222 has 16 divisors (see below), whose sum is σ = 19891872. Its totient is φ = 5786880.

The previous prime is 12404201. The next prime is 12404269. The reversal of 12404222 is 22240421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12404222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403 + ... + 5174.

It is an arithmetic number, because the mean of its divisors is an integer number (1243242).

Almost surely, 2^12404222 is an apocalyptic number.

12404222 is a deficient number, since it is larger than the sum of its proper divisors (7487650).

12404222 is a wasteful number, since it uses less digits than its factorization.

12404222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6643.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 12404222 is about 3521.9628050279. The cubic root of 12404222 is about 231.4851718131.

Adding to 12404222 its reverse (22240421), we get a palindrome (34644643).

The spelling of 12404222 in words is "twelve million, four hundred four thousand, two hundred twenty-two".