142042424 has 16 divisors (see below), whose sum is σ = 266625000. Its totient is φ = 70942432.

The previous prime is 142042421. The next prime is 142042447. The reversal of 142042424 is 424240241.

142042424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142042424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142042421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1799 + ... + 16950.

Almost surely, 2^142042424 is an apocalyptic number.

It is an amenable number.

142042424 is a deficient number, since it is larger than the sum of its proper divisors (124582576).

142042424 is a wasteful number, since it uses less digits than its factorization.

142042424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19702 (or 19698 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 142042424 is about 11918.1552263763. The cubic root of 142042424 is about 521.7622949466.

Adding to 142042424 its reverse (424240241), we get a palindrome (566282665).

The spelling of 142042424 in words is "one hundred forty-two million, forty-two thousand, four hundred twenty-four".