624222 has 12 divisors (see below), whose sum is σ = 1352520. Its totient is φ = 208068.

The previous prime is 624209. The next prime is 624229. The reversal of 624222 is 222426.

It is a happy number.

624222 is nontrivially palindromic in base 15.

624222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 34679 = 624222 / (6 + 2 + 4 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 624195 and 624204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17322 + ... + 17357.

It is an arithmetic number, because the mean of its divisors is an integer number (112710).

2⁶²⁴²²² is an apocalyptic number.

624222 is an abundant number, since it is smaller than the sum of its proper divisors (728298).

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

624222 is a wasteful number, since it uses less digits than its factorization.

624222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34687 (or 34684 counting only the distinct ones).

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

The square root of 624222 is about 790.0772114167. The cubic root of 624222 is about 85.4633063024.

Adding to 624222 its reverse (222426), we get a palindrome (846648).

The spelling of 624222 in words is "six hundred twenty-four thousand, two hundred twenty-two".