7444030021 has 4 divisors (see below), whose sum is σ = 7458263872. Its totient is φ = 7429796172.

The previous prime is 7444029997. The next prime is 7444030049. The reversal of 7444030021 is 1200304447.

7444030021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7444030021 - 2¹⁹ = 7443505733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7444030081) 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, 7116141 + ... + 7117186.

It is an arithmetic number, because the mean of its divisors is an integer number (1864565968).

Almost surely, 2^7444030021 is an apocalyptic number.

It is an amenable number.

7444030021 is a deficient number, since it is larger than the sum of its proper divisors (14233851).

7444030021 is a wasteful number, since it uses less digits than its factorization.

7444030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14233850.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 7444030021 is about 86278.7924173722. The cubic root of 7444030021 is about 1952.5524341082.

Adding to 7444030021 its reverse (1200304447), we get a palindrome (8644334468).

The spelling of 7444030021 in words is "seven billion, four hundred forty-four million, thirty thousand, twenty-one".