40422442242 has 64 divisors (see below), whose sum is σ = 99802450944. Its totient is φ = 10628608320.

The previous prime is 40422442241. The next prime is 40422442253. The reversal of 40422442242 is 24224422404.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40422442241) 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, 68893 + ... + 292559.

It is an arithmetic number, because the mean of its divisors is an integer number (1559413296).

Almost surely, 2^40422442242 is an apocalyptic number.

40422442242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40422442242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49901225472).

40422442242 is an abundant number, since it is smaller than the sum of its proper divisors (59380008702).

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

40422442242 is a wasteful number, since it uses less digits than its factorization.

40422442242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224023.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 40422442242 its reverse (24224422404), we get a palindrome (64646864646).

The spelling of 40422442242 in words is "forty billion, four hundred twenty-two million, four hundred forty-two thousand, two hundred forty-two".