42020142234 has 64 divisors (see below), whose sum is σ = 97573702656. Its totient is φ = 11815144704.

The previous prime is 42020142233. The next prime is 42020142247. The reversal of 42020142234 is 43224102024.

It is not an unprimeable number, because it can be changed into a prime (42020142233) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3153474 + ... + 3166770.

It is an arithmetic number, because the mean of its divisors is an integer number (1524589104).

Almost surely, 2^42020142234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42020142234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48786851328).

42020142234 is an abundant number, since it is smaller than the sum of its proper divisors (55553560422).

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

42020142234 is a wasteful number, since it uses less digits than its factorization.

42020142234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14499.

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

Adding to 42020142234 its reverse (43224102024), we get a palindrome (85244244258).

The spelling of 42020142234 in words is "forty-two billion, twenty million, one hundred forty-two thousand, two hundred thirty-four".