42422232340 has 24 divisors (see below), whose sum is σ = 91494437832. Its totient is φ = 16510273920.

The previous prime is 42422232331. The next prime is 42422232343. The reversal of 42422232340 is 4323222424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16813271556 + 25608960784 = 129666^2 + 160028^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42422232299 and 42422232308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42422232343) 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 7 ways as a sum of consecutive naturals, for example, 28662931 + ... + 28664410.

It is an arithmetic number, because the mean of its divisors is an integer number (3812268243).

Almost surely, 2^42422232340 is an apocalyptic number.

It is an amenable number.

42422232340 is an abundant number, since it is smaller than the sum of its proper divisors (49072205492).

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

42422232340 is a wasteful number, since it uses less digits than its factorization.

42422232340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57327387 (or 57327385 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 42422232340 its reverse (4323222424), we get a palindrome (46745454764).

The spelling of 42422232340 in words is "forty-two billion, four hundred twenty-two million, two hundred thirty-two thousand, three hundred forty".