42635042 has 4 divisors (see below), whose sum is σ = 63952566. Its totient is φ = 21317520.

The previous prime is 42635041. The next prime is 42635057. The reversal of 42635042 is 24053624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31013761 + 11621281 = 5569^2 + 3409^2 .

It is not an unprimeable number, because it can be changed into a prime (42635041) 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 as a sum of consecutive naturals, namely, 10658759 + ... + 10658762.

Almost surely, 2^42635042 is an apocalyptic number.

42635042 is a deficient number, since it is larger than the sum of its proper divisors (21317524).

42635042 is a wasteful number, since it uses less digits than its factorization.

42635042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21317523.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42635042 is about 6529.5514394176. The cubic root of 42635042 is about 349.3458311461.

Adding to 42635042 its reverse (24053624), we get a palindrome (66688666).

The spelling of 42635042 in words is "forty-two million, six hundred thirty-five thousand, forty-two".