142442322 has 32 divisors (see below), whose sum is σ = 311411520. Its totient is φ = 43077120.

The previous prime is 142442281. The next prime is 142442347. The reversal of 142442322 is 223244241.

It is a junction number, because it is equal to n+sod(n) for n = 142442292 and 142442301.

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 15 ways as a sum of consecutive naturals, for example, 35658 + ... + 39450.

It is an arithmetic number, because the mean of its divisors is an integer number (9731610).

Almost surely, 2^142442322 is an apocalyptic number.

142442322 is an abundant number, since it is smaller than the sum of its proper divisors (168969198).

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

142442322 is a wasteful number, since it uses less digits than its factorization.

142442322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4378.

The product of its digits is 3072, while the sum is 24.

The square root of 142442322 is about 11934.9202762314. The cubic root of 142442322 is about 522.2514825883.

Adding to 142442322 its reverse (223244241), we get a palindrome (365686563).

The spelling of 142442322 in words is "one hundred forty-two million, four hundred forty-two thousand, three hundred twenty-two".