284422 has 4 divisors (see below), whose sum is σ = 426636. Its totient is φ = 142210.

The previous prime is 284413. The next prime is 284423. The reversal of 284422 is 224482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224482 = 2 ⋅112241.

It is a junction number, because it is equal to n+sod(n) for n = 284393 and 284402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284423) by changing a digit.

284422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71104 + ... + 71107.

It is an arithmetic number, because the mean of its divisors is an integer number (106659).

2²⁸⁴⁴²² is an apocalyptic number.

284422 is a deficient number, since it is larger than the sum of its proper divisors (142214).

284422 is a wasteful number, since it uses less digits than its factorization.

284422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142213.

The product of its digits is 1024, while the sum is 22.

The square root of 284422 is about 533.3122912516. The cubic root of 284422 is about 65.7639254962.

The spelling of 284422 in words is "two hundred eighty-four thousand, four hundred twenty-two".