42442135 has 8 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 33312864.

The previous prime is 42442129. The next prime is 42442157. The reversal of 42442135 is 53124424.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42442135 - 2²³ = 34053527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79815 + ... + 80344.

It is an arithmetic number, because the mean of its divisors is an integer number (6486480).

Almost surely, 2^42442135 is an apocalyptic number.

42442135 is a deficient number, since it is larger than the sum of its proper divisors (9449705).

42442135 is a wasteful number, since it uses less digits than its factorization.

42442135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160217.

The product of its digits is 3840, while the sum is 25.

The square root of 42442135 is about 6514.7628506339. The cubic root of 42442135 is about 348.8181497750.

Adding to 42442135 its reverse (53124424), we get a palindrome (95566559).

The spelling of 42442135 in words is "forty-two million, four hundred forty-two thousand, one hundred thirty-five".