4430444414021 has 4 divisors (see below), whose sum is σ = 4430519068812. Its totient is φ = 4430369759232.

The previous prime is 4430444413897. The next prime is 4430444414029. The reversal of 4430444414021 is 1204144440344.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2580164351521 + 1850280062500 = 1606289^2 + 1360250^2 .

It is a cyclic number.

It is not a de Polignac number, because 4430444414021 - 2¹⁰ = 4430444412997 is a prime.

It is a super-2 number, since 2×4430444414021² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4430444414029) 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, 37238306 + ... + 37357091.

It is an arithmetic number, because the mean of its divisors is an integer number (1107629767203).

Almost surely, 2^{4430444414021} is an apocalyptic number.

It is an amenable number.

4430444414021 is a deficient number, since it is larger than the sum of its proper divisors (74654791).

4430444414021 is an equidigital number, since it uses as much as digits as its factorization.

4430444414021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74654790.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 4430444414021 its reverse (1204144440344), we get a palindrome (5634588854365).

The spelling of 4430444414021 in words is "four trillion, four hundred thirty billion, four hundred forty-four million, four hundred fourteen thousand, twenty-one".