142304442 has 32 divisors (see below), whose sum is σ = 334061952. Its totient is φ = 39559104.

The previous prime is 142304441. The next prime is 142304483. The reversal of 142304442 is 244403241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (142304441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44233 + ... + 47340.

It is an arithmetic number, because the mean of its divisors is an integer number (10439436).

Almost surely, 2^142304442 is an apocalyptic number.

142304442 is an abundant number, since it is smaller than the sum of its proper divisors (191757510).

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

142304442 is a wasteful number, since it uses less digits than its factorization.

142304442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91622.

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

The square root of 142304442 is about 11929.1425509129. The cubic root of 142304442 is about 522.0829201372.

Adding to 142304442 its reverse (244403241), we get a palindrome (386707683).

The spelling of 142304442 in words is "one hundred forty-two million, three hundred four thousand, four hundred forty-two".