285480216 has 48 divisors (see below), whose sum is σ = 883630800. Its totient is φ = 81565632.

The previous prime is 285480199. The next prime is 285480229. The reversal of 285480216 is 612084582.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282711 + ... + 283718.

It is an arithmetic number, because the mean of its divisors is an integer number (18408975).

Almost surely, 2^285480216 is an apocalyptic number.

It is an amenable number.

285480216 is an abundant number, since it is smaller than the sum of its proper divisors (598150584).

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

285480216 is a wasteful number, since it uses less digits than its factorization.

285480216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566448 (or 566441 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 285480216 is about 16896.1598003807. The cubic root of 285480216 is about 658.4538462851.

The spelling of 285480216 in words is "two hundred eighty-five million, four hundred eighty thousand, two hundred sixteen".