12183642 has 32 divisors (see below), whose sum is σ = 27740160. Its totient is φ = 3961440.

The previous prime is 12183641. The next prime is 12183643. The reversal of 12183642 is 24638121.

12183642 is a `hidden beast` number, since 1 + 2 + 18 + 3 + 642 = 666.

It is an interprime number because it is at equal distance from previous prime (12183641) and next prime (12183643).

It is a super-2 number, since 2×12183642² = 296882264768328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12183641) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 538 + ... + 4965.

It is an arithmetic number, because the mean of its divisors is an integer number (866880).

Almost surely, 2^12183642 is an apocalyptic number.

12183642 is an abundant number, since it is smaller than the sum of its proper divisors (15556518).

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

12183642 is a wasteful number, since it uses less digits than its factorization.

12183642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555 (or 5549 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 12183642 is about 3490.5074129702. The cubic root of 12183642 is about 230.1048167494.

The spelling of 12183642 in words is "twelve million, one hundred eighty-three thousand, six hundred forty-two".