4244004021 has 16 divisors (see below), whose sum is σ = 5687136000. Its totient is φ = 2815124928.

The previous prime is 4244003983. The next prime is 4244004047. The reversal of 4244004021 is 1204004424.

4244004021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4244004021 - 2¹¹ = 4244001973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244004421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395915 + ... + 1398951.

It is an arithmetic number, because the mean of its divisors is an integer number (355446000).

Almost surely, 2^4244004021 is an apocalyptic number.

It is an amenable number.

4244004021 is a deficient number, since it is larger than the sum of its proper divisors (1443131979).

4244004021 is a wasteful number, since it uses less digits than its factorization.

4244004021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4244004021 is about 65146.0207610565. The cubic root of 4244004021 is about 1619.0437913690.

Adding to 4244004021 its reverse (1204004424), we get a palindrome (5448008445).

The spelling of 4244004021 in words is "four billion, two hundred forty-four million, four thousand, twenty-one".