142442324 has 12 divisors (see below), whose sum is σ = 249359124. Its totient is φ = 71196864.

The previous prime is 142442281. The next prime is 142442347. The reversal of 142442324 is 423244241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91776400 + 50665924 = 9580^2 + 7118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142442293 and 142442302.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16142 + ... + 23354.

It is an arithmetic number, because the mean of its divisors is an integer number (20779927).

Almost surely, 2^142442324 is an apocalyptic number.

It is an amenable number.

142442324 is a deficient number, since it is larger than the sum of its proper divisors (106916800).

142442324 is a wasteful number, since it uses less digits than its factorization.

142442324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12154 (or 12152 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 142442324 is about 11934.9203600192. The cubic root of 142442324 is about 522.2514850326.

Adding to 142442324 its reverse (423244241), we get a palindrome (565686565).

The spelling of 142442324 in words is "one hundred forty-two million, four hundred forty-two thousand, three hundred twenty-four".