4244302021 has 4 divisors (see below), whose sum is σ = 4250743200. Its totient is φ = 4237860844.

The previous prime is 4244302009. The next prime is 4244302031. The reversal of 4244302021 is 1202034424.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4244302021 - 2¹³ = 4244293829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4244301983 and 4244302001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244302031) 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, 3219601 + ... + 3220918.

It is an arithmetic number, because the mean of its divisors is an integer number (1062685800).

Almost surely, 2^4244302021 is an apocalyptic number.

It is an amenable number.

4244302021 is a deficient number, since it is larger than the sum of its proper divisors (6441179).

4244302021 is an equidigital number, since it uses as much as digits as its factorization.

4244302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6441178.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4244302021 is about 65148.3078905354. The cubic root of 4244302021 is about 1619.0816851249.

Adding to 4244302021 its reverse (1202034424), we get a palindrome (5446336445).

The spelling of 4244302021 in words is "four billion, two hundred forty-four million, three hundred two thousand, twenty-one".