285148048 has 80 divisors (see below), whose sum is σ = 605586240. Its totient is φ = 129600000.

The previous prime is 285148037. The next prime is 285148049. The reversal of 285148048 is 840841582.

285148048 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 285148048.

It is not an unprimeable number, because it can be changed into a prime (285148049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1135923 + ... + 1136173.

It is an arithmetic number, because the mean of its divisors is an integer number (7569828).

Almost surely, 2^285148048 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 285148048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302793120).

285148048 is an abundant number, since it is smaller than the sum of its proper divisors (320438192).

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

285148048 is a wasteful number, since it uses less digits than its factorization.

285148048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The square root of 285148048 is about 16886.3272501749. The cubic root of 285148048 is about 658.1983677748.

The spelling of 285148048 in words is "two hundred eighty-five million, one hundred forty-eight thousand, forty-eight".