42705775 has 12 divisors (see below), whose sum is σ = 60520432. Its totient is φ = 29283840.

The previous prime is 42705763. The next prime is 42705781. The reversal of 42705775 is 57750724.

It is a de Polignac number, because none of the positive numbers 2^k-42705775 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121842 + ... + 122191.

Almost surely, 2^42705775 is an apocalyptic number.

42705775 is a deficient number, since it is larger than the sum of its proper divisors (17814657).

42705775 is a wasteful number, since it uses less digits than its factorization.

42705775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244050 (or 244045 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 42705775 is about 6534.9655699170. The cubic root of 42705775 is about 349.5389166538.

The spelling of 42705775 in words is "forty-two million, seven hundred five thousand, seven hundred seventy-five".