842422 has 16 divisors (see below), whose sum is σ = 1520640. Its totient is φ = 341928.

The previous prime is 842419. The next prime is 842423. The reversal of 842422 is 224248.

842422 is nontrivially palindromic in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 842393 and 842402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842423) 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, 1318 + ... + 1849.

It is an arithmetic number, because the mean of its divisors is an integer number (95040).

2⁸⁴²⁴²² is an apocalyptic number.

842422 is a deficient number, since it is larger than the sum of its proper divisors (678218).

842422 is a wasteful number, since it uses less digits than its factorization.

842422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195.

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

The square root of 842422 is about 917.8354972434. The cubic root of 842422 is about 94.4444771498. Note that the first 4 decimals are identical.

The spelling of 842422 in words is "eight hundred forty-two thousand, four hundred twenty-two".