2004240221 has 8 divisors (see below), whose sum is σ = 2011653120. Its totient is φ = 1996841808.

The previous prime is 2004240197. The next prime is 2004240247. The reversal of 2004240221 is 1220424002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2004240221 - 2⁶ = 2004240157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2004240221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004240521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326660 + ... + 332738.

It is an arithmetic number, because the mean of its divisors is an integer number (251456640).

Almost surely, 2^2004240221 is an apocalyptic number.

It is an amenable number.

2004240221 is a deficient number, since it is larger than the sum of its proper divisors (7412899).

2004240221 is an equidigital number, since it uses as much as digits as its factorization.

2004240221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7243.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2004240221 is about 44768.7415614958. The cubic root of 2004240221 is about 1260.8108120085.

Adding to 2004240221 its reverse (1220424002), we get a palindrome (3224664223).

The spelling of 2004240221 in words is "two billion, four million, two hundred forty thousand, two hundred twenty-one".