12018730 has 8 divisors (see below), whose sum is σ = 21633732. Its totient is φ = 4807488.

The previous prime is 12018703. The next prime is 12018733. The reversal of 12018730 is 3781021.

12018730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11377129 + 641601 = 3373^2 + 801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12018733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600927 + ... + 600946.

Almost surely, 2^12018730 is an apocalyptic number.

12018730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12018730 is a deficient number, since it is larger than the sum of its proper divisors (9615002).

12018730 is a wasteful number, since it uses less digits than its factorization.

12018730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201880.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 12018730 is about 3466.8040036899. The cubic root of 12018730 is about 229.0619004685.

Adding to 12018730 its reverse (3781021), we get a palindrome (15799751).

The spelling of 12018730 in words is "twelve million, eighteen thousand, seven hundred thirty".