2204145 has 32 divisors (see below), whose sum is σ = 4060800. Its totient is φ = 1132992.

The previous prime is 2204143. The next prime is 2204149. The reversal of 2204145 is 5414022.

It is not a de Polignac number, because 2204145 - 2¹ = 2204143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2204143) 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, 3634 + ... + 4196.

It is an arithmetic number, because the mean of its divisors is an integer number (126900).

2^2204145 is an apocalyptic number.

It is an amenable number.

2204145 is a deficient number, since it is larger than the sum of its proper divisors (1856655).

2204145 is a wasteful number, since it uses less digits than its factorization.

2204145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2204145 is about 1484.6363191031. The cubic root of 2204145 is about 130.1407745246.

Adding to 2204145 its reverse (5414022), we get a palindrome (7618167).

The spelling of 2204145 in words is "two million, two hundred four thousand, one hundred forty-five".