281894 has 8 divisors (see below), whose sum is σ = 447768. Its totient is φ = 132640.

The previous prime is 281893. The next prime is 281921. The reversal of 281894 is 498182.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 281894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281893) 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, 4112 + ... + 4179.

It is an arithmetic number, because the mean of its divisors is an integer number (55971).

2²⁸¹⁸⁹⁴ is an apocalyptic number.

281894 is a deficient number, since it is larger than the sum of its proper divisors (165874).

281894 is a wasteful number, since it uses less digits than its factorization.

281894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8310.

The product of its digits is 4608, while the sum is 32.

The square root of 281894 is about 530.9369077395. The cubic root of 281894 is about 65.5685043633.

The spelling of 281894 in words is "two hundred eighty-one thousand, eight hundred ninety-four".