622224 has 60 divisors (see below), whose sum is σ = 1813500. Its totient is φ = 198912.

The previous prime is 622189. The next prime is 622241. The reversal of 622224 is 422226.

It is a happy number.

622224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 435600 = 432^2 + 660^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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

Its product of digits (384) is a multiple of the sum of its prime factors (192).

It is a junction number, because it is equal to n+sod(n) for n = 622197 and 622206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4102 + ... + 4250.

It is an arithmetic number, because the mean of its divisors is an integer number (30225).

2⁶²²²²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (906750).

622224 is an abundant number, since it is smaller than the sum of its proper divisors (1191276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622224 is a wasteful number, since it uses less digits than its factorization.

622224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 183 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 622224 is about 788.8117646182. The cubic root of 622224 is about 85.3720256390.

It can be divided in two parts, 62222 and 4, that added together give a palindrome (62226).

The spelling of 622224 in words is "six hundred twenty-two thousand, two hundred twenty-four".