281449 has 8 divisors (see below), whose sum is σ = 332288. Its totient is φ = 233280.

The previous prime is 281431. The next prime is 281509. The reversal of 281449 is 944182.

281449 is nontrivially palindromic in base 6.

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

It is a cyclic number.

It is not a de Polignac number, because 281449 - 2⁷ = 281321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (281419) 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, 432 + ... + 865.

It is an arithmetic number, because the mean of its divisors is an integer number (41536).

2²⁸¹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

281449 is a deficient number, since it is larger than the sum of its proper divisors (50839).

281449 is a wasteful number, since it uses less digits than its factorization.

281449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335.

The product of its digits is 2304, while the sum is 28.

The square root of 281449 is about 530.5176717132. The cubic root of 281449 is about 65.5339838799.

The spelling of 281449 in words is "two hundred eighty-one thousand, four hundred forty-nine".