12044142 has 48 divisors (see below), whose sum is σ = 28978560. Its totient is φ = 3584400.

The previous prime is 12044141. The next prime is 12044147. The reversal of 12044142 is 24144021.

It is a super-2 number, since 2×12044142² = 290122713032328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12044141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11167 + ... + 12197.

It is an arithmetic number, because the mean of its divisors is an integer number (603720).

Almost surely, 2^12044142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12044142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14489280).

12044142 is an abundant number, since it is smaller than the sum of its proper divisors (16934418).

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

12044142 is a wasteful number, since it uses less digits than its factorization.

12044142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 12044142 is about 3470.4671155336. The cubic root of 12044142 is about 229.2232270897.

Adding to 12044142 its reverse (24144021), we get a palindrome (36188163).

The spelling of 12044142 in words is "twelve million, forty-four thousand, one hundred forty-two".