12018270 has 64 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 2870400.

The previous prime is 12018263. The next prime is 12018271. The reversal of 12018270 is 7281021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25840 + ... + 26300.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^12018270 is an apocalyptic number.

12018270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12018270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15966720).

12018270 is an abundant number, since it is smaller than the sum of its proper divisors (19915170).

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

12018270 is a wasteful number, since it uses less digits than its factorization.

12018270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 12018270 is about 3466.7376595295. The cubic root of 12018270 is about 229.0589780904.

Adding to 12018270 its reverse (7281021), we get a palindrome (19299291).

The spelling of 12018270 in words is "twelve million, eighteen thousand, two hundred seventy".