285222834 has 24 divisors (see below), whose sum is σ = 665520492. Its totient is φ = 87760800.

The previous prime is 285222829. The next prime is 285222853. The reversal of 285222834 is 438222582.

285222834 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 268796025 + 16426809 = 16395^2 + 4053^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609217 + ... + 609684.

Almost surely, 2^285222834 is an apocalyptic number.

285222834 is an abundant number, since it is smaller than the sum of its proper divisors (380297658).

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

285222834 is a wasteful number, since it uses less digits than its factorization.

285222834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218922 (or 1218919 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 285222834 is about 16888.5415000822. The cubic root of 285222834 is about 658.2559048107.

The spelling of 285222834 in words is "two hundred eighty-five million, two hundred twenty-two thousand, eight hundred thirty-four".