4402002021 has 8 divisors (see below), whose sum is σ = 5900066304. Its totient is φ = 2919302880.

The previous prime is 4402002019. The next prime is 4402002029. The reversal of 4402002021 is 1202002044.

4402002021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4402002021 - 2¹ = 4402002019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4402002029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840616 + ... + 3841761.

It is an arithmetic number, because the mean of its divisors is an integer number (737508288).

Almost surely, 2^4402002021 is an apocalyptic number.

It is an amenable number.

4402002021 is a deficient number, since it is larger than the sum of its proper divisors (1498064283).

4402002021 is a wasteful number, since it uses less digits than its factorization.

4402002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7682571.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4402002021 is about 66347.5848919914. The cubic root of 4402002021 is about 1638.8910335757.

Adding to 4402002021 its reverse (1202002044), we get a palindrome (5604004065).

The spelling of 4402002021 in words is "four billion, four hundred two million, two thousand, twenty-one".