285838384 has 40 divisors (see below), whose sum is σ = 616991760. Its totient is φ = 127373568.

The previous prime is 285838373. The next prime is 285838387. The reversal of 285838384 is 483838582.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (285838387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17662 + ... + 29725.

It is an arithmetic number, because the mean of its divisors is an integer number (15424794).

Almost surely, 2^285838384 is an apocalyptic number.

It is an amenable number.

285838384 is an abundant number, since it is smaller than the sum of its proper divisors (331153376).

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

285838384 is a wasteful number, since it uses less digits than its factorization.

285838384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47437 (or 47431 counting only the distinct ones).

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

The square root of 285838384 is about 16906.7555728472. The cubic root of 285838384 is about 658.7291000790.

The spelling of 285838384 in words is "two hundred eighty-five million, eight hundred thirty-eight thousand, three hundred eighty-four".