282491 has 8 divisors (see below), whose sum is σ = 313968. Its totient is φ = 252000.

The previous prime is 282487. The next prime is 282493. The reversal of 282491 is 194282.

282491 = T₁₁₄ + T₁₁₅ + ... + T₁₄₆.

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 282491 - 2² = 282487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 282491.

It is not an unprimeable number, because it can be changed into a prime (282493) 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, 461 + ... + 881.

It is an arithmetic number, because the mean of its divisors is an integer number (39246).

2²⁸²⁴⁹¹ is an apocalyptic number.

282491 is a deficient number, since it is larger than the sum of its proper divisors (31477).

282491 is a wasteful number, since it uses less digits than its factorization.

282491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493.

The product of its digits is 1152, while the sum is 26.

The square root of 282491 is about 531.4988240815. The cubic root of 282491 is about 65.6147590974.

Subtracting from 282491 its reverse (194282), we obtain a square (88209 = 297²).

The spelling of 282491 in words is "two hundred eighty-two thousand, four hundred ninety-one".