285462868 has 24 divisors (see below), whose sum is σ = 503378568. Its totient is φ = 141645696.

The previous prime is 285462847. The next prime is 285462887. The reversal of 285462868 is 868264582.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 77757124 + 207705744 = 8818^2 + 14412^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 436830 + ... + 437482.

It is an arithmetic number, because the mean of its divisors is an integer number (20974107).

Almost surely, 2^285462868 is an apocalyptic number.

It is an amenable number.

285462868 is a deficient number, since it is larger than the sum of its proper divisors (217915700).

285462868 is a wasteful number, since it uses less digits than its factorization.

285462868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1321 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 49.

The square root of 285462868 is about 16895.6464214898. The cubic root of 285462868 is about 658.4405084213.

The spelling of 285462868 in words is "two hundred eighty-five million, four hundred sixty-two thousand, eight hundred sixty-eight".