12018030 has 16 divisors (see below), whose sum is σ = 28843344. Its totient is φ = 3204800.

The previous prime is 12018023. The next prime is 12018047. The reversal of 12018030 is 3081021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 200271 + ... + 200330.

It is an arithmetic number, because the mean of its divisors is an integer number (1802709).

Almost surely, 2^12018030 is an apocalyptic number.

12018030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12018030 is an abundant number, since it is smaller than the sum of its proper divisors (16825314).

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

12018030 is a wasteful number, since it uses less digits than its factorization.

12018030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400611.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 12018030 is about 3466.7030446809. The cubic root of 12018030 is about 229.0574533419.

Adding to 12018030 its reverse (3081021), we get a palindrome (15099051).

The spelling of 12018030 in words is "twelve million, eighteen thousand, thirty".