622356 has 48 divisors (see below), whose sum is σ = 1720320. Its totient is φ = 171360.

The previous prime is 622351. The next prime is 622367. The reversal of 622356 is 653226.

It is a d-powerful number, because it can be written as 6² + 2³ + 3⁹ + 2¹⁹ + 5⁷ + 6³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622351) by changing a digit.

622356 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 15 ways as a sum of consecutive naturals, for example, 2485 + ... + 2723.

It is an arithmetic number, because the mean of its divisors is an integer number (35840).

2⁶²²³⁵⁶ 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 622356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860160).

622356 is an abundant number, since it is smaller than the sum of its proper divisors (1097964).

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

622356 is a wasteful number, since it uses less digits than its factorization.

622356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 282 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 622356 is about 788.8954303328. The cubic root of 622356 is about 85.3780622167.

The spelling of 622356 in words is "six hundred twenty-two thousand, three hundred fifty-six".