285294860 has 48 divisors (see below), whose sum is σ = 620481792. Its totient is φ = 110073600.

The previous prime is 285294853. The next prime is 285294869. The reversal of 285294860 is 68492582.

It is not an unprimeable number, because it can be changed into a prime (285294869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260474 + ... + 261566.

It is an arithmetic number, because the mean of its divisors is an integer number (12926704).

Almost surely, 2^285294860 is an apocalyptic number.

285294860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285294860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310240896).

285294860 is an abundant number, since it is smaller than the sum of its proper divisors (335186932).

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

285294860 is a wasteful number, since it uses less digits than its factorization.

285294860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 285294860 is about 16890.6737580240. The cubic root of 285294860 is about 658.3113089180.

The spelling of 285294860 in words is "two hundred eighty-five million, two hundred ninety-four thousand, eight hundred sixty".