42855835 has 16 divisors (see below), whose sum is σ = 56279520. Its totient is φ = 31069440.

The previous prime is 42855833. The next prime is 42855847. The reversal of 42855835 is 53855824.

It is not a de Polignac number, because 42855835 - 2¹ = 42855833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42855833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19471 + ... + 21559.

It is an arithmetic number, because the mean of its divisors is an integer number (3517470).

Almost surely, 2^42855835 is an apocalyptic number.

42855835 is a deficient number, since it is larger than the sum of its proper divisors (13423685).

42855835 is a wasteful number, since it uses less digits than its factorization.

42855835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478.

The product of its digits is 192000, while the sum is 40.

The square root of 42855835 is about 6546.4368170784. The cubic root of 42855835 is about 349.9478425680.

The spelling of 42855835 in words is "forty-two million, eight hundred fifty-five thousand, eight hundred thirty-five".