42243635 has 12 divisors (see below), whose sum is σ = 58969008. Its totient is φ = 28966896.

The previous prime is 42243611. The next prime is 42243637. The reversal of 42243635 is 53634224.

It is not a de Polignac number, because 42243635 - 2⁸ = 42243379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42243598 and 42243607.

It is not an unprimeable number, because it can be changed into a prime (42243637) 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 11 ways as a sum of consecutive naturals, for example, 85967 + ... + 86456.

It is an arithmetic number, because the mean of its divisors is an integer number (4914084).

Almost surely, 2^42243635 is an apocalyptic number.

42243635 is a deficient number, since it is larger than the sum of its proper divisors (16725373).

42243635 is a wasteful number, since it uses less digits than its factorization.

42243635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172442 (or 172435 counting only the distinct ones).

The product of its digits is 17280, while the sum is 29.

The square root of 42243635 is about 6499.5103661737. The cubic root of 42243635 is about 348.2734974002.

Adding to 42243635 its reverse (53634224), we get a palindrome (95877859).

The spelling of 42243635 in words is "forty-two million, two hundred forty-three thousand, six hundred thirty-five".