12023418 has 32 divisors (see below), whose sum is σ = 26634240. Its totient is φ = 3587760.

The previous prime is 12023393. The next prime is 12023419. The reversal of 12023418 is 81432021.

It is a junction number, because it is equal to n+sod(n) for n = 12023394 and 12023403.

It is not an unprimeable number, because it can be changed into a prime (12023419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3063 + ... + 5781.

It is an arithmetic number, because the mean of its divisors is an integer number (832320).

Almost surely, 2^12023418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12023418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13317120).

12023418 is an abundant number, since it is smaller than the sum of its proper divisors (14610822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12023418 is a wasteful number, since it uses less digits than its factorization.

12023418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12023418 is about 3467.4800648309. The cubic root of 12023418 is about 229.0916790613.

Adding to 12023418 its reverse (81432021), we get a palindrome (93455439).

The spelling of 12023418 in words is "twelve million, twenty-three thousand, four hundred eighteen".