285073660 has 48 divisors (see below), whose sum is σ = 615871872. Its totient is φ = 110779200.

The previous prime is 285073639. The next prime is 285073667. The reversal of 285073660 is 66370582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285073667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180675 + ... + 182245.

It is an arithmetic number, because the mean of its divisors is an integer number (12830664).

Almost surely, 2^285073660 is an apocalyptic number.

285073660 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 285073660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307935936).

285073660 is an abundant number, since it is smaller than the sum of its proper divisors (330798212).

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

285073660 is a wasteful number, since it uses less digits than its factorization.

285073660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834 (or 1832 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 285073660 is about 16884.1244961058. The cubic root of 285073660 is about 658.1411269616.

The spelling of 285073660 in words is "two hundred eighty-five million, seventy-three thousand, six hundred sixty".