42442075 has 24 divisors (see below), whose sum is σ = 58013648. Its totient is φ = 30602880.

The previous prime is 42442073. The next prime is 42442097. The reversal of 42442075 is 57024424.

It is a happy number.

It is not a de Polignac number, because 42442075 - 2¹ = 42442073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42442073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12457 + ... + 15493.

Almost surely, 2^42442075 is an apocalyptic number.

42442075 is a deficient number, since it is larger than the sum of its proper divisors (15571573).

42442075 is a wasteful number, since it uses less digits than its factorization.

42442075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103 (or 3098 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 42442075 is about 6514.7582457064. The cubic root of 42442075 is about 348.8179854014.

Adding to 42442075 its reverse (57024424), we get a palindrome (99466499).

The spelling of 42442075 in words is "forty-two million, four hundred forty-two thousand, seventy-five".