281244 has 24 divisors (see below), whose sum is σ = 685440. Its totient is φ = 89584.

The previous prime is 281243. The next prime is 281249. The reversal of 281244 is 442182.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 281244.

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 281244.

It is not an unprimeable number, because it can be changed into a prime (281243) 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, 234 + ... + 785.

It is an arithmetic number, because the mean of its divisors is an integer number (28560).

2²⁸¹²⁴⁴ is an apocalyptic number.

It is an amenable number.

281244 is an abundant number, since it is smaller than the sum of its proper divisors (404196).

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

281244 is a wasteful number, since it uses less digits than its factorization.

281244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1047 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 281244 is about 530.3244290055. The cubic root of 281244 is about 65.5180689423.

It can be divided in two parts, 281 and 244, that added together give a palindrome (525).

The spelling of 281244 in words is "two hundred eighty-one thousand, two hundred forty-four".