142742424 has 32 divisors (see below), whose sum is σ = 389298240. Its totient is φ = 43255200.

The previous prime is 142742423. The next prime is 142742441. The reversal of 142742424 is 424247241.

It is a junction number, because it is equal to n+sod(n) for n = 142742391 and 142742400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142742423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270082 + ... + 270609.

It is an arithmetic number, because the mean of its divisors is an integer number (12165570).

Almost surely, 2^142742424 is an apocalyptic number.

It is an amenable number.

142742424 is an abundant number, since it is smaller than the sum of its proper divisors (246555816).

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

142742424 is a wasteful number, since it uses less digits than its factorization.

142742424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540711 (or 540707 counting only the distinct ones).

The product of its digits is 14336, while the sum is 30.

The square root of 142742424 is about 11947.4860954094. The cubic root of 142742424 is about 522.6179906454.

Adding to 142742424 its reverse (424247241), we get a palindrome (566989665).

The spelling of 142742424 in words is "one hundred forty-two million, seven hundred forty-two thousand, four hundred twenty-four".