622416 has 20 divisors (see below), whose sum is σ = 1608032. Its totient is φ = 207456.

The previous prime is 622399. The next prime is 622423. The reversal of 622416 is 614226.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 622392 and 622401.

It is a congruent number.

It is an unprimeable number.

622416 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6436 + ... + 6531.

2⁶²²⁴¹⁶ is an apocalyptic number.

It is an amenable number.

622416 is an abundant number, since it is smaller than the sum of its proper divisors (985616).

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

622416 is a wasteful number, since it uses less digits than its factorization.

622416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12978 (or 12972 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 622416 is about 788.9334572700. The cubic root of 622416 is about 85.3808058335.

It can be divided in two parts, 6 and 22416, that added together give a palindrome (22422).

The spelling of 622416 in words is "six hundred twenty-two thousand, four hundred sixteen".