2209239 has 6 divisors (see below), whose sum is σ = 3191136. Its totient is φ = 1472820.

The previous prime is 2209231. The next prime is 2209253. The reversal of 2209239 is 9329022.

It is not a de Polignac number, because 2209239 - 2³ = 2209231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209231) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 122727 + ... + 122744.

It is an arithmetic number, because the mean of its divisors is an integer number (531856).

2^2209239 is an apocalyptic number.

2209239 is a deficient number, since it is larger than the sum of its proper divisors (981897).

2209239 is a wasteful number, since it uses less digits than its factorization.

2209239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245477 (or 245474 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2209239 is about 1486.3509006961. The cubic root of 2209239 is about 130.2409535140.

The spelling of 2209239 in words is "two million, two hundred nine thousand, two hundred thirty-nine".