12434142 has 24 divisors (see below), whose sum is σ = 28929096. Its totient is φ = 3552528.

The previous prime is 12434137. The next prime is 12434143. The reversal of 12434142 is 24143421.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20853 + ... + 21440.

It is an arithmetic number, because the mean of its divisors is an integer number (1205379).

Almost surely, 2^12434142 is an apocalyptic number.

12434142 is an abundant number, since it is smaller than the sum of its proper divisors (16494954).

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

12434142 is a wasteful number, since it uses less digits than its factorization.

12434142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42312 (or 42305 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 12434142 is about 3526.2078781603. The cubic root of 12434142 is about 231.6711427690.

Adding to 12434142 its reverse (24143421), we get a palindrome (36577563).

The spelling of 12434142 in words is "twelve million, four hundred thirty-four thousand, one hundred forty-two".