12385418 has 16 divisors (see below), whose sum is σ = 19896840. Its totient is φ = 5761536.

The previous prime is 12385391. The next prime is 12385433. The reversal of 12385418 is 81458321.

It can be written as a sum of positive squares in 4 ways, for example, as 10004569 + 2380849 = 3163^2 + 1543^2 .

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, 980 + ... + 5072.

Almost surely, 2^12385418 is an apocalyptic number.

12385418 is a deficient number, since it is larger than the sum of its proper divisors (7511422).

12385418 is a wasteful number, since it uses less digits than its factorization.

12385418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201.

The product of its digits is 7680, while the sum is 32.

The square root of 12385418 is about 3519.2922583951. The cubic root of 12385418 is about 231.3681404623.

The spelling of 12385418 in words is "twelve million, three hundred eighty-five thousand, four hundred eighteen".