285983104 has 64 divisors (see below), whose sum is σ = 648622080. Its totient is φ = 124326400.

The previous prime is 285983083. The next prime is 285983111. The reversal of 285983104 is 401389582.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27969 + ... + 36799.

It is an arithmetic number, because the mean of its divisors is an integer number (10134720).

Almost surely, 2^285983104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285983104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324311040).

285983104 is an abundant number, since it is smaller than the sum of its proper divisors (362638976).

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

285983104 is a wasteful number, since it uses less digits than its factorization.

285983104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8879 (or 8867 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 285983104 is about 16911.0349771976. The cubic root of 285983104 is about 658.8402528568.

It can be divided in two parts, 285 and 983104, that added together give a palindrome (983389).

The spelling of 285983104 in words is "two hundred eighty-five million, nine hundred eighty-three thousand, one hundred four".