281238 has 16 divisors (see below), whose sum is σ = 592320. Its totient is φ = 88776.

The previous prime is 281233. The next prime is 281243. The reversal of 281238 is 832182.

281238 is nontrivially palindromic in base 5.

281238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (281233) and next prime (281243).

It is a Curzon number.

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 281238.

It is not an unprimeable number, because it can be changed into a prime (281233) 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, 1120 + ... + 1347.

It is an arithmetic number, because the mean of its divisors is an integer number (37020).

2²⁸¹²³⁸ is an apocalyptic number.

281238 is an abundant number, since it is smaller than the sum of its proper divisors (311082).

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

281238 is a wasteful number, since it uses less digits than its factorization.

281238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491.

The product of its digits is 768, while the sum is 24.

The square root of 281238 is about 530.3187720607. The cubic root of 281238 is about 65.5176030228.

It can be divided in two parts, 2812 and 38, that added together give a triangular number (2850 = T₇₅).

The spelling of 281238 in words is "two hundred eighty-one thousand, two hundred thirty-eight".