283585728 has 56 divisors (see below), whose sum is σ = 760636528. Its totient is φ = 93229056.

The previous prime is 283585711. The next prime is 283585739. The reversal of 283585728 is 827585382.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3900 + ... + 24132.

Almost surely, 2^283585728 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 283585728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380318264).

283585728 is an abundant number, since it is smaller than the sum of its proper divisors (477050800).

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

283585728 is a wasteful number, since it uses less digits than its factorization.

283585728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20321 (or 20311 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 283585728 is about 16840.0038004746. The cubic root of 283585728 is about 656.9940807855.

The spelling of 283585728 in words is "two hundred eighty-three million, five hundred eighty-five thousand, seven hundred twenty-eight".