12331788 has 24 divisors (see below), whose sum is σ = 32884992. Its totient is φ = 3523344.

The previous prime is 12331771. The next prime is 12331789. The reversal of 12331788 is 88713321.

It is not an unprimeable number, because it can be changed into a prime (12331789) 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 7 ways as a sum of consecutive naturals, for example, 73320 + ... + 73487.

It is an arithmetic number, because the mean of its divisors is an integer number (1370208).

Almost surely, 2^12331788 is an apocalyptic number.

It is an amenable number.

12331788 is an abundant number, since it is smaller than the sum of its proper divisors (20553204).

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

12331788 is a wasteful number, since it uses less digits than its factorization.

12331788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146821 (or 146819 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 12331788 is about 3511.6645625686. The cubic root of 12331788 is about 231.0337088418.

The spelling of 12331788 in words is "twelve million, three hundred thirty-one thousand, seven hundred eighty-eight".