622842 has 16 divisors (see below), whose sum is σ = 1359072. Its totient is φ = 188720.

The previous prime is 622813. The next prime is 622849. The reversal of 622842 is 248226.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6³ + 2 + 8⁵ + 2⁵ + 4⁸ + 2¹⁹ .

It is not an unprimeable number, because it can be changed into a prime (622849) by changing a digit.

622842 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4653 + ... + 4784.

It is an arithmetic number, because the mean of its divisors is an integer number (84942).

2⁶²²⁸⁴² is an apocalyptic number.

622842 is an abundant number, since it is smaller than the sum of its proper divisors (736230).

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

622842 is a wasteful number, since it uses less digits than its factorization.

622842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9453.

The product of its digits is 1536, while the sum is 24.

The square root of 622842 is about 789.2033958366. The cubic root of 622842 is about 85.4002804445.

The spelling of 622842 in words is "six hundred twenty-two thousand, eight hundred forty-two".