285054660 has 192 divisors, whose sum is σ = 994371840. Its totient is φ = 67184640.

The previous prime is 285054607. The next prime is 285054661. The reversal of 285054660 is 66450582.

285054660 is a `hidden beast` number, since 2 + 8 + 50 + 546 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (285054661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 219132 + ... + 220428.

It is an arithmetic number, because the mean of its divisors is an integer number (5179020).

Almost surely, 2^285054660 is an apocalyptic number.

285054660 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 285054660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497185920).

285054660 is an abundant number, since it is smaller than the sum of its proper divisors (709317180).

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

285054660 is a wasteful number, since it uses less digits than its factorization.

285054660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 285054660 is about 16883.5618280030. The cubic root of 285054660 is about 658.1265050574.

The spelling of 285054660 in words is "two hundred eighty-five million, fifty-four thousand, six hundred sixty".