285885432 has 96 divisors (see below), whose sum is σ = 889106400. Its totient is φ = 81292032.

The previous prime is 285885427. The next prime is 285885473. The reversal of 285885432 is 234588582.

285885432 is a `hidden beast` number, since 28 + 5 + 88 + 543 + 2 = 666.

285885432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114178 + ... + 116654.

It is an arithmetic number, because the mean of its divisors is an integer number (9261525).

Almost surely, 2^285885432 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 285885432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444553200).

285885432 is an abundant number, since it is smaller than the sum of its proper divisors (603220968).

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

285885432 is a wasteful number, since it uses less digits than its factorization.

285885432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725 (or 2718 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 285885432 is about 16908.1469120658. The cubic root of 285885432 is about 658.7652395996.

The spelling of 285885432 in words is "two hundred eighty-five million, eight hundred eighty-five thousand, four hundred thirty-two".