12031768 has 16 divisors (see below), whose sum is σ = 25782480. Its totient is φ = 5156448.

The previous prime is 12031729. The next prime is 12031777. The reversal of 12031768 is 86713021.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107371 + ... + 107482.

It is an arithmetic number, because the mean of its divisors is an integer number (1611405).

Almost surely, 2^12031768 is an apocalyptic number.

It is an amenable number.

12031768 is an abundant number, since it is smaller than the sum of its proper divisors (13750712).

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

12031768 is a wasteful number, since it uses less digits than its factorization.

12031768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214866 (or 214862 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12031768 is about 3468.6839002711. The cubic root of 12031768 is about 229.1446998375.

Adding to 12031768 its reverse (86713021), we get a palindrome (98744789).

The spelling of 12031768 in words is "twelve million, thirty-one thousand, seven hundred sixty-eight".