622366 has 4 divisors (see below), whose sum is σ = 933552. Its totient is φ = 311182.

The previous prime is 622351. The next prime is 622367. The reversal of 622366 is 663226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 663226 = 2 ⋅331613.

It is a self number, because there is not a number n which added to its sum of digits gives 622366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622367) by changing a digit.

622366 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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155590 + ... + 155593.

It is an arithmetic number, because the mean of its divisors is an integer number (233388).

2⁶²²³⁶⁶ is an apocalyptic number.

622366 is a deficient number, since it is larger than the sum of its proper divisors (311186).

622366 is a wasteful number, since it uses less digits than its factorization.

622366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311185.

The product of its digits is 2592, while the sum is 25.

The square root of 622366 is about 788.9017682830. The cubic root of 622366 is about 85.3785194985.

The spelling of 622366 in words is "six hundred twenty-two thousand, three hundred sixty-six".