12033040 has 20 divisors (see below), whose sum is σ = 27977004. Its totient is φ = 4813184.

The previous prime is 12033037. The next prime is 12033041. The reversal of 12033040 is 4033021.

It can be written as a sum of positive squares in 2 ways, for example, as 7772944 + 4260096 = 2788^2 + 2064^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 12033040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75127 + ... + 75286.

Almost surely, 2^12033040 is an apocalyptic number.

12033040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12033040 is an abundant number, since it is smaller than the sum of its proper divisors (15943964).

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

12033040 is a wasteful number, since it uses less digits than its factorization.

12033040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150426 (or 150420 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 12033040 is about 3468.8672502706. The cubic root of 12033040 is about 229.1527746216.

Adding to 12033040 its reverse (4033021), we get a palindrome (16066061).

The spelling of 12033040 in words is "twelve million, thirty-three thousand, forty".