42340122 has 48 divisors (see below), whose sum is σ = 102424608. Its totient is φ = 12529440.

The previous prime is 42340121. The next prime is 42340127. The reversal of 42340122 is 22104324.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 42340095 and 42340104.

It is not an unprimeable number, because it can be changed into a prime (42340121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6028 + ... + 11000.

It is an arithmetic number, because the mean of its divisors is an integer number (2133846).

Almost surely, 2^42340122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42340122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51212304).

42340122 is an abundant number, since it is smaller than the sum of its proper divisors (60084486).

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

42340122 is a wasteful number, since it uses less digits than its factorization.

42340122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035 (or 5032 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42340122 is about 6506.9287686281. The cubic root of 42340122 is about 348.5384549727.

Adding to 42340122 its reverse (22104324), we get a palindrome (64444446).

The spelling of 42340122 in words is "forty-two million, three hundred forty thousand, one hundred twenty-two".