285477312 has 56 divisors (see below), whose sum is σ = 760908816. Its totient is φ = 94455808.

The previous prime is 285477293. The next prime is 285477317. The reversal of 285477312 is 213774582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285477317) 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 7 ways as a sum of consecutive naturals, for example, 20878 + ... + 31730.

Almost surely, 2^285477312 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 285477312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380454408).

285477312 is an abundant number, since it is smaller than the sum of its proper divisors (475431504).

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

285477312 is a wasteful number, since it uses less digits than its factorization.

285477312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11005 (or 10995 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 285477312 is about 16896.0738634749. The cubic root of 285477312 is about 658.4516136068.

The spelling of 285477312 in words is "two hundred eighty-five million, four hundred seventy-seven thousand, three hundred twelve".