284449 has 8 divisors (see below), whose sum is σ = 326880. Its totient is φ = 244800.

The previous prime is 284447. The next prime is 284467. The reversal of 284449 is 944482.

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 284449 - 2¹ = 284447 is a prime.

It is a super-2 number, since 2×284449² = 161822467202, which contains 22 as substring.

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 284449.

It is not an unprimeable number, because it can be changed into a prime (284447) 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, 472 + ... + 889.

It is an arithmetic number, because the mean of its divisors is an integer number (40860).

2²⁸⁴⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

284449 is a deficient number, since it is larger than the sum of its proper divisors (42431).

284449 is a wasteful number, since it uses less digits than its factorization.

284449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its digits is 9216, while the sum is 31.

The square root of 284449 is about 533.3376041496. The cubic root of 284449 is about 65.7660064063.

The spelling of 284449 in words is "two hundred eighty-four thousand, four hundred forty-nine".