283540 has 12 divisors (see below), whose sum is σ = 595476. Its totient is φ = 113408.

The previous prime is 283519. The next prime is 283541. The reversal of 283540 is 45382.

It can be written as a sum of positive squares in 2 ways, for example, as 219024 + 64516 = 468^2 + 254^2 .

It is a d-powerful number, because it can be written as 2¹⁸ + 8² + 5⁴ + 3⁹ + 4⁵ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7069 + ... + 7108.

It is an arithmetic number, because the mean of its divisors is an integer number (49623).

2²⁸³⁵⁴⁰ is an apocalyptic number.

283540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283540 is an abundant number, since it is smaller than the sum of its proper divisors (311936).

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

283540 is a wasteful number, since it uses less digits than its factorization.

283540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14186 (or 14184 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 283540 is about 532.4847415654. The cubic root of 283540 is about 65.6958765609.

The spelling of 283540 in words is "two hundred eighty-three thousand, five hundred forty".