12229408 has 24 divisors (see below), whose sum is σ = 24157980. Its totient is φ = 6094080.

The previous prime is 12229403. The next prime is 12229421. The reversal of 12229408 is 80492221.

It can be written as a sum of positive squares in 2 ways, for example, as 12194064 + 35344 = 3492^2 + 188^2 .

It is not an unprimeable number, because it can be changed into a prime (12229403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14338 + ... + 15166.

Almost surely, 2^12229408 is an apocalyptic number.

It is an amenable number.

12229408 is a deficient number, since it is larger than the sum of its proper divisors (11928572).

12229408 is an equidigital number, since it uses as much as digits as its factorization.

12229408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12229408 is about 3497.0570484337. The cubic root of 12229408 is about 230.3925746707.

The spelling of 12229408 in words is "twelve million, two hundred twenty-nine thousand, four hundred eight".