2022009 has 16 divisors (see below), whose sum is σ = 2985984. Its totient is φ = 1206800.

The previous prime is 2021959. The next prime is 2022011. The reversal of 2022009 is 9002202.

It is a cyclic number.

It is not a de Polignac number, because 2022009 - 2⁹ = 2021497 is a prime.

2022009 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1912 + ... + 2774.

It is an arithmetic number, because the mean of its divisors is an integer number (186624).

2^2022009 is an apocalyptic number.

It is an amenable number.

2022009 is a deficient number, since it is larger than the sum of its proper divisors (963975).

2022009 is a wasteful number, since it uses less digits than its factorization.

2022009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2022009 is about 1421.9736284474. The cubic root of 2022009 is about 126.4525800381.

It can be divided in two parts, 202 and 2009, that added together give a triangular number (2211 = T₆₆).

The spelling of 2022009 in words is "two million, twenty-two thousand, nine".