12408422 has 16 divisors (see below), whose sum is σ = 20185200. Its totient is φ = 5686752.

The previous prime is 12408421. The next prime is 12408427. The reversal of 12408422 is 22480421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12408421) 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, 2273 + ... + 5475.

It is an arithmetic number, because the mean of its divisors is an integer number (1261575).

Almost surely, 2^12408422 is an apocalyptic number.

12408422 is a deficient number, since it is larger than the sum of its proper divisors (7776778).

12408422 is a wasteful number, since it uses less digits than its factorization.

12408422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 12408422 is about 3522.5590129904. The cubic root of 12408422 is about 231.5112953918.

Adding to 12408422 its reverse (22480421), we get a palindrome (34888843).

The spelling of 12408422 in words is "twelve million, four hundred eight thousand, four hundred twenty-two".