4204445 has 18 divisors (see below), whose sum is σ = 5914206. Its totient is φ = 2861040.

The previous prime is 4204441. The next prime is 4204471. The reversal of 4204445 is 5444024.

It can be written as a sum of positive squares in only one way, i.e., 3363556 + 840889 = 1834^2 + 917^2 .

It is not a de Polignac number, because 4204445 - 2² = 4204441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4204445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4204441) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32030 + ... + 32160.

It is an arithmetic number, because the mean of its divisors is an integer number (328567).

Almost surely, 2^4204445 is an apocalyptic number.

It is an amenable number.

4204445 is a deficient number, since it is larger than the sum of its proper divisors (1709761).

4204445 is an equidigital number, since it uses as much as digits as its factorization.

4204445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 4204445 is about 2050.4743353673. The cubic root of 4204445 is about 161.3997627120.

Adding to 4204445 its reverse (5444024), we get a palindrome (9648469).

The spelling of 4204445 in words is "four million, two hundred four thousand, four hundred forty-five".