285558048 has 84 divisors (see below), whose sum is σ = 842971878. Its totient is φ = 95178240.

The previous prime is 285558047. The next prime is 285558059. The reversal of 285558048 is 840855582.

285558048 is a `hidden beast` number, since 28 + 5 + 5 + 580 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 265950864 + 19607184 = 16308^2 + 4428^2 .

It is a junction number, because it is equal to n+sod(n) for n = 285557994 and 285558012.

It is not an unprimeable number, because it can be changed into a prime (285558047) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 17208 + ... + 29448.

Almost surely, 2^285558048 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 285558048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421485939).

285558048 is an abundant number, since it is smaller than the sum of its proper divisors (557413830).

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

285558048 is an equidigital number, since it uses as much as digits as its factorization.

285558048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12269 (or 12246 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 45.

The square root of 285558048 is about 16898.4628886772. The cubic root of 285558048 is about 658.5136801139.

The spelling of 285558048 in words is "two hundred eighty-five million, five hundred fifty-eight thousand, forty-eight".