12142444 has 12 divisors (see below), whose sum is σ = 22367800. Its totient is φ = 5751648.

The previous prime is 12142439. The next prime is 12142451. The reversal of 12142444 is 44424121.

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

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, 79809 + ... + 79960.

Almost surely, 2^12142444 is an apocalyptic number.

It is an amenable number.

12142444 is a deficient number, since it is larger than the sum of its proper divisors (10225356).

12142444 is a wasteful number, since it uses less digits than its factorization.

12142444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159792 (or 159790 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

The square root of 12142444 is about 3484.6009814611. The cubic root of 12142444 is about 229.8451635881.

Adding to 12142444 its reverse (44424121), we get a palindrome (56566565).

The spelling of 12142444 in words is "twelve million, one hundred forty-two thousand, four hundred forty-four".