4485221 has 4 divisors (see below), whose sum is σ = 4830252. Its totient is φ = 4140192.

The previous prime is 4485211. The next prime is 4485223. The reversal of 4485221 is 1225844.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 429025 + 4056196 = 655^2 + 2014^2 .

It is a cyclic number.

It is not a de Polignac number, because 4485221 - 2⁶ = 4485157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4485223) 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, 172496 + ... + 172521.

It is an arithmetic number, because the mean of its divisors is an integer number (1207563).

Almost surely, 2^4485221 is an apocalyptic number.

It is an amenable number.

4485221 is a deficient number, since it is larger than the sum of its proper divisors (345031).

4485221 is a wasteful number, since it uses less digits than its factorization.

4485221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345030.

The product of its digits is 2560, while the sum is 26.

The square root of 4485221 is about 2117.8340350462. The cubic root of 4485221 is about 164.9154265079.

The spelling of 4485221 in words is "four million, four hundred eighty-five thousand, two hundred twenty-one".