12033918 has 24 divisors (see below), whose sum is σ = 28079688. Its totient is φ = 3702672.

The previous prime is 12033907. The next prime is 12033941. The reversal of 12033918 is 81933021.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12033891 and 12033900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25480 + ... + 25947.

It is an arithmetic number, because the mean of its divisors is an integer number (1169987).

Almost surely, 2^12033918 is an apocalyptic number.

12033918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12033918 is an abundant number, since it is smaller than the sum of its proper divisors (16045770).

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

12033918 is a wasteful number, since it uses less digits than its factorization.

12033918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51448 (or 51445 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12033918 is about 3468.9938022430. The cubic root of 12033918 is about 229.1583479221.

Adding to 12033918 its reverse (81933021), we get a palindrome (93966939).

The spelling of 12033918 in words is "twelve million, thirty-three thousand, nine hundred eighteen".