2239205 has 4 divisors (see below), whose sum is σ = 2687052. Its totient is φ = 1791360.

The previous prime is 2239201. The next prime is 2239213. The reversal of 2239205 is 5029322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5029322 = 2 ⋅2514661.

It can be written as a sum of positive squares in 2 ways, for example, as 386884 + 1852321 = 622^2 + 1361^2 .

It is not a de Polignac number, because 2239205 - 2² = 2239201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223916 + ... + 223925.

It is an arithmetic number, because the mean of its divisors is an integer number (671763).

2^2239205 is an apocalyptic number.

It is an amenable number.

2239205 is a deficient number, since it is larger than the sum of its proper divisors (447847).

2239205 is an equidigital number, since it uses as much as digits as its factorization.

2239205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447846.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2239205 is about 1496.3973402810. The cubic root of 2239205 is about 130.8271714229.

The spelling of 2239205 in words is "two million, two hundred thirty-nine thousand, two hundred five".