12038018 has 4 divisors (see below), whose sum is σ = 18057030. Its totient is φ = 6019008.

The previous prime is 12038017. The next prime is 12038027. The reversal of 12038018 is 81083021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81083021 = 37 ⋅2191433.

It can be written as a sum of positive squares in only one way, i.e., 7823209 + 4214809 = 2797^2 + 2053^2 .

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 12037984 and 12038002.

It is not an unprimeable number, because it can be changed into a prime (12038011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3009503 + ... + 3009506.

Almost surely, 2^12038018 is an apocalyptic number.

12038018 is a deficient number, since it is larger than the sum of its proper divisors (6019012).

12038018 is an equidigital number, since it uses as much as digits as its factorization.

12038018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019011.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 12038018 is about 3469.5847013728. The cubic root of 12038018 is about 229.1843699969.

The spelling of 12038018 in words is "twelve million, thirty-eight thousand, eighteen".