142434 has 24 divisors (see below), whose sum is σ = 317772. Its totient is φ = 46080.

The previous prime is 142433. The next prime is 142453. The reversal of 142434 is 434241.

It can be written as a sum of positive squares in 2 ways, for example, as 119025 + 23409 = 345^2 + 153^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142434.

It is not an unprimeable number, because it can be changed into a prime (142433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 642 + ... + 834.

2¹⁴²⁴³⁴ is an apocalyptic number.

142434 is an abundant number, since it is smaller than the sum of its proper divisors (175338).

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

142434 is a wasteful number, since it uses less digits than its factorization.

142434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 239 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 142434 is about 377.4042925034. The cubic root of 142434 is about 52.2241311778.

Adding to 142434 its reverse (434241), we get a palindrome (576675).

It can be divided in two parts, 142 and 434, that added together give a square (576 = 24²).

The spelling of 142434 in words is "one hundred forty-two thousand, four hundred thirty-four".