808542385 has 24 divisors (see below), whose sum is σ = 1134957096. Its totient is φ = 551335680.

The previous prime is 808542367. The next prime is 808542407. The reversal of 808542385 is 583245808.

It can be written as a sum of positive squares in 4 ways, for example, as 2039184 + 806503201 = 1428^2 + 28399^2 .

It is not a de Polignac number, because 808542385 - 2⁹ = 808541873 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35229 + ... + 53461.

It is an arithmetic number, because the mean of its divisors is an integer number (47289879).

Almost surely, 2^808542385 is an apocalyptic number.

It is an amenable number.

808542385 is a deficient number, since it is larger than the sum of its proper divisors (326414711).

808542385 is a wasteful number, since it uses less digits than its factorization.

808542385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18433 (or 18426 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 43.

The square root of 808542385 is about 28434.8797254358. The cubic root of 808542385 is about 931.6102618849.

The spelling of 808542385 in words is "eight hundred eight million, five hundred forty-two thousand, three hundred eighty-five".