42285771 has 24 divisors (see below), whose sum is σ = 67307760. Its totient is φ = 25368000.

The previous prime is 42285751. The next prime is 42285779. The reversal of 42285771 is 17758224.

42285771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42285771 - 2⁵ = 42285739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42285779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7885 + ... + 12113.

It is an arithmetic number, because the mean of its divisors is an integer number (2804490).

Almost surely, 2^42285771 is an apocalyptic number.

42285771 is a deficient number, since it is larger than the sum of its proper divisors (25021989).

42285771 is a wasteful number, since it uses less digits than its factorization.

42285771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347 (or 4344 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 42285771 is about 6502.7510332166. The cubic root of 42285771 is about 348.3892542919.

It can be divided in two parts, 4228 and 5771, that added together give a palindrome (9999).

The spelling of 42285771 in words is "forty-two million, two hundred eighty-five thousand, seven hundred seventy-one".