12383218 has 16 divisors (see below), whose sum is σ = 18912600. Its totient is φ = 6080256.

The previous prime is 12383153. The next prime is 12383233. The reversal of 12383218 is 81238321.

It can be written as a sum of positive squares in 4 ways, for example, as 7198489 + 5184729 = 2683^2 + 2277^2 .

It is an alternating number because its digits alternate between odd and even.

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, 35308 + ... + 35656.

Almost surely, 2^12383218 is an apocalyptic number.

12383218 is a deficient number, since it is larger than the sum of its proper divisors (6529382).

12383218 is a wasteful number, since it uses less digits than its factorization.

12383218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621.

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

The square root of 12383218 is about 3518.9796816691. The cubic root of 12383218 is about 231.3544404792.

The spelling of 12383218 in words is "twelve million, three hundred eighty-three thousand, two hundred eighteen".