2022309 has 12 divisors (see below), whose sum is σ = 3000556. Its totient is φ = 1311552.

The previous prime is 2022301. The next prime is 2022329. The reversal of 2022309 is 9032202.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 199809 = 1350^2 + 447^2 .

It is not a de Polignac number, because 2022309 - 2³ = 2022301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022291 and 2022300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2704 + ... + 3369.

2^2022309 is an apocalyptic number.

It is an amenable number.

2022309 is a deficient number, since it is larger than the sum of its proper divisors (978247).

2022309 is a wasteful number, since it uses less digits than its factorization.

2022309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116 (or 6113 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2022309 is about 1422.0791117234. The cubic root of 2022309 is about 126.4588335378.

The spelling of 2022309 in words is "two million, twenty-two thousand, three hundred nine".