42142223442 has 64 divisors (see below), whose sum is σ = 93529728000. Its totient is φ = 12550843200.

The previous prime is 42142223419. The next prime is 42142223443. The reversal of 42142223442 is 24432224124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42142223443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6031483 + ... + 6038465.

It is an arithmetic number, because the mean of its divisors is an integer number (1461402000).

Almost surely, 2^42142223442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42142223442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46764864000).

42142223442 is an abundant number, since it is smaller than the sum of its proper divisors (51387504558).

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

42142223442 is a wasteful number, since it uses less digits than its factorization.

42142223442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559.

The product of its digits is 24576, while the sum is 30.

Adding to 42142223442 its reverse (24432224124), we get a palindrome (66574447566).

The spelling of 42142223442 in words is "forty-two billion, one hundred forty-two million, two hundred twenty-three thousand, four hundred forty-two".