2202309 has 32 divisors (see below), whose sum is σ = 3542400. Its totient is φ = 1364688.

The previous prime is 2202287. The next prime is 2202311. The reversal of 2202309 is 9032022.

It is not a de Polignac number, because 2202309 - 2¹⁶ = 2136773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2202291 and 2202300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41527 + ... + 41579.

It is an arithmetic number, because the mean of its divisors is an integer number (110700).

2^2202309 is an apocalyptic number.

It is an amenable number.

2202309 is a deficient number, since it is larger than the sum of its proper divisors (1340091).

2202309 is an frugal number, since it uses more digits than its factorization.

2202309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 75 counting only the distinct ones).

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

The square root of 2202309 is about 1484.0178570354. The cubic root of 2202309 is about 130.1046297707.

The spelling of 2202309 in words is "two million, two hundred two thousand, three hundred nine".