285250788 has 48 divisors (see below), whose sum is σ = 744293760. Its totient is φ = 94472352.

The previous prime is 285250739. The next prime is 285250793. The reversal of 285250788 is 887052582.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8545 + ... + 25367.

It is an arithmetic number, because the mean of its divisors is an integer number (15506120).

Almost surely, 2^285250788 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 285250788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372146880).

285250788 is an abundant number, since it is smaller than the sum of its proper divisors (459042972).

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

285250788 is a wasteful number, since it uses less digits than its factorization.

285250788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16993 (or 16985 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 285250788 is about 16889.3690823547. The cubic root of 285250788 is about 658.2774087978.

The spelling of 285250788 in words is "two hundred eighty-five million, two hundred fifty thousand, seven hundred eighty-eight".