42443075 has 6 divisors (see below), whose sum is σ = 52629444. Its totient is φ = 33954440.

The previous prime is 42443069. The next prime is 42443087. The reversal of 42443075 is 57034424.

It is not a de Polignac number, because 42443075 - 2⁸ = 42442819 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 848837 + ... + 848886.

It is an arithmetic number, because the mean of its divisors is an integer number (8771574).

Almost surely, 2^42443075 is an apocalyptic number.

42443075 is a deficient number, since it is larger than the sum of its proper divisors (10186369).

42443075 is a wasteful number, since it uses less digits than its factorization.

42443075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697733 (or 1697728 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 42443075 is about 6514.8349940731. The cubic root of 42443075 is about 348.8207249411.

Adding to 42443075 its reverse (57034424), we get a palindrome (99477499).

The spelling of 42443075 in words is "forty-two million, four hundred forty-three thousand, seventy-five".