285471460 has 24 divisors (see below), whose sum is σ = 609320376. Its totient is φ = 112316160.

The previous prime is 285471449. The next prime is 285471533. The reversal of 285471460 is 64174582.

It can be written as a sum of positive squares in 4 ways, for example, as 21473956 + 263997504 = 4634^2 + 16248^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 115777 + ... + 118216.

It is an arithmetic number, because the mean of its divisors is an integer number (25388349).

Almost surely, 2^285471460 is an apocalyptic number.

285471460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285471460 is an abundant number, since it is smaller than the sum of its proper divisors (323848916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285471460 is a wasteful number, since it uses less digits than its factorization.

285471460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234063 (or 234061 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 285471460 is about 16895.9006862612. The cubic root of 285471460 is about 658.4471143758.

The spelling of 285471460 in words is "two hundred eighty-five million, four hundred seventy-one thousand, four hundred sixty".