12018834 has 32 divisors (see below), whose sum is σ = 27872640. Its totient is φ = 3831696.

The previous prime is 12018833. The next prime is 12018841. The reversal of 12018834 is 43881021.

12018834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 12018798 and 12018807.

It is not an unprimeable number, because it can be changed into a prime (12018833) 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, 3597 + ... + 6080.

It is an arithmetic number, because the mean of its divisors is an integer number (871020).

Almost surely, 2^12018834 is an apocalyptic number.

12018834 is an abundant number, since it is smaller than the sum of its proper divisors (15853806).

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

12018834 is a wasteful number, since it uses less digits than its factorization.

12018834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711 (or 9705 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12018834 is about 3466.8190030632. The cubic root of 12018834 is about 229.0625611697.

Adding to 12018834 its reverse (43881021), we get a palindrome (55899855).

The spelling of 12018834 in words is "twelve million, eighteen thousand, eight hundred thirty-four".