142841238 has 16 divisors (see below), whose sum is σ = 293404080. Its totient is φ = 46326816.

The previous prime is 142841233. The next prime is 142841249. The reversal of 142841238 is 832148241.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142841199 and 142841208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142841233) 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, 321493 + ... + 321936.

It is an arithmetic number, because the mean of its divisors is an integer number (18337755).

Almost surely, 2^142841238 is an apocalyptic number.

142841238 is an abundant number, since it is smaller than the sum of its proper divisors (150562842).

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

142841238 is a wasteful number, since it uses less digits than its factorization.

142841238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643471.

The product of its digits is 12288, while the sum is 33.

The square root of 142841238 is about 11951.6207269140. The cubic root of 142841238 is about 522.7385576098.

Adding to 142841238 its reverse (832148241), we get a palindrome (974989479).

The spelling of 142841238 in words is "one hundred forty-two million, eight hundred forty-one thousand, two hundred thirty-eight".