422824 has 16 divisors (see below), whose sum is σ = 839700. Its totient is φ = 198912.

The previous prime is 422803. The next prime is 422827. The reversal of 422824 is 428224.

It can be written as a sum of positive squares in 2 ways, for example, as 422500 + 324 = 650^2 + 18^2 .

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 422795 and 422804.

It is not an unprimeable number, because it can be changed into a prime (422827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1419 + ... + 1690.

2⁴²²⁸²⁴ is an apocalyptic number.

It is an amenable number.

422824 is a deficient number, since it is larger than the sum of its proper divisors (416876).

422824 is a wasteful number, since it uses less digits than its factorization.

422824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132 (or 3128 counting only the distinct ones).

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

The square root of 422824 is about 650.2491830060. The cubic root of 422824 is about 75.0561949216.

The spelling of 422824 in words is "four hundred twenty-two thousand, eight hundred twenty-four".