42005122 has 8 divisors (see below), whose sum is σ = 64348416. Its totient is φ = 20555652.

The previous prime is 42005081. The next prime is 42005167. The reversal of 42005122 is 22150024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42005096 and 42005105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223338 + ... + 223525.

It is an arithmetic number, because the mean of its divisors is an integer number (8043552).

Almost surely, 2^42005122 is an apocalyptic number.

42005122 is a deficient number, since it is larger than the sum of its proper divisors (22343294).

42005122 is a wasteful number, since it uses less digits than its factorization.

42005122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446912.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 42005122 is about 6481.1358572398. The cubic root of 42005122 is about 347.6167942385.

Adding to 42005122 its reverse (22150024), we get a palindrome (64155146).

The spelling of 42005122 in words is "forty-two million, five thousand, one hundred twenty-two".