12239766 has 48 divisors (see below), whose sum is σ = 33067008. Its totient is φ = 3178800.

The previous prime is 12239753. The next prime is 12239791. The reversal of 12239766 is 66793221.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12239766.

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 23 ways as a sum of consecutive naturals, for example, 3030 + ... + 5801.

It is an arithmetic number, because the mean of its divisors is an integer number (688896).

Almost surely, 2^12239766 is an apocalyptic number.

12239766 is an abundant number, since it is smaller than the sum of its proper divisors (20827242).

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

12239766 is a wasteful number, since it uses less digits than its factorization.

12239766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8857 (or 8854 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 12239766 is about 3498.5376945232. The cubic root of 12239766 is about 230.4576018811.

It can be divided in two parts, 12 and 239766, that added together give a triangular number (239778 = T₆₉₂).

The spelling of 12239766 in words is "twelve million, two hundred thirty-nine thousand, seven hundred sixty-six".