142442230420 has 48 divisors (see below), whose sum is σ = 341908939008. Its totient is φ = 48830538240.

The previous prime is 142442230397. The next prime is 142442230423. The reversal of 142442230420 is 24032244241.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142442230423) 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, 995724 + ... + 1129756.

It is an arithmetic number, because the mean of its divisors is an integer number (7123102896).

Almost surely, 2^142442230420 is an apocalyptic number.

142442230420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142442230420 is an abundant number, since it is smaller than the sum of its proper divisors (199466708588).

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

142442230420 is a wasteful number, since it uses less digits than its factorization.

142442230420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141640 (or 141638 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 142442230420 its reverse (24032244241), we get a palindrome (166474474661).

The spelling of 142442230420 in words is "one hundred forty-two billion, four hundred forty-two million, two hundred thirty thousand, four hundred twenty".