280532 has 24 divisors (see below), whose sum is σ = 576576. Its totient is φ = 116928.

The previous prime is 280513. The next prime is 280537. The reversal of 280532 is 235082.

280532 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2⁹ + 8² + 5⁶ + 0 + 3⁷ + 2¹⁸ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280532.

It is not an unprimeable number, because it can be changed into a prime (280537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088 + ... + 1320.

It is an arithmetic number, because the mean of its divisors is an integer number (24024).

2²⁸⁰⁵³² 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 280532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288288).

280532 is an abundant number, since it is smaller than the sum of its proper divisors (296044).

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

280532 is a wasteful number, since it uses less digits than its factorization.

280532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 280532 is about 529.6527164095. The cubic root of 280532 is about 65.4627334968.

The spelling of 280532 in words is "two hundred eighty thousand, five hundred thirty-two".