2420004221 has 8 divisors (see below), whose sum is σ = 2473131744. Its totient is φ = 2367153360.

The previous prime is 2420004193. The next prime is 2420004253. The reversal of 2420004221 is 1224000242.

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 2420004221 - 2³⁰ = 1346262397 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 2420004221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420000221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51431 + ... + 86516.

It is an arithmetic number, because the mean of its divisors is an integer number (309141468).

Almost surely, 2^2420004221 is an apocalyptic number.

It is an amenable number.

2420004221 is a deficient number, since it is larger than the sum of its proper divisors (53127523).

2420004221 is a wasteful number, since it uses less digits than its factorization.

2420004221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138331.

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

The square root of 2420004221 is about 49193.5384069900. The cubic root of 2420004221 is about 1342.5754694964.

Adding to 2420004221 its reverse (1224000242), we get a palindrome (3644004463).

The spelling of 2420004221 in words is "two billion, four hundred twenty million, four thousand, two hundred twenty-one".