285442041 has 32 divisors (see below), whose sum is σ = 412917120. Its totient is φ = 174988800.

The previous prime is 285442039. The next prime is 285442117. The reversal of 285442041 is 140244582.

It is not a de Polignac number, because 285442041 - 2¹ = 285442039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285442841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152451 + ... + 154311.

It is an arithmetic number, because the mean of its divisors is an integer number (12903660).

Almost surely, 2^285442041 is an apocalyptic number.

It is an amenable number.

285442041 is a deficient number, since it is larger than the sum of its proper divisors (127475079).

285442041 is a wasteful number, since it uses less digits than its factorization.

285442041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977.

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 285442041 is about 16895.0300680407. The cubic root of 285442041 is about 658.4244950439.

The spelling of 285442041 in words is "two hundred eighty-five million, four hundred forty-two thousand, forty-one".