281342 has 16 divisors (see below), whose sum is σ = 447552. Its totient is φ = 132480.

The previous prime is 281339. The next prime is 281353. The reversal of 281342 is 243182.

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 281342.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3818 + ... + 3890.

It is an arithmetic number, because the mean of its divisors is an integer number (27972).

2²⁸¹³⁴² is an apocalyptic number.

281342 is a deficient number, since it is larger than the sum of its proper divisors (166210).

281342 is a wasteful number, since it uses less digits than its factorization.

281342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163.

The product of its digits is 384, while the sum is 20.

The square root of 281342 is about 530.4168172296. The cubic root of 281342 is about 65.5256780233.

The spelling of 281342 in words is "two hundred eighty-one thousand, three hundred forty-two".