4445321305 has 8 divisors (see below), whose sum is σ = 5335671744. Its totient is φ = 3555399600.

The previous prime is 4445321299. The next prime is 4445321317. The reversal of 4445321305 is 5031235444.

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

It is not a de Polignac number, because 4445321305 - 2⁵ = 4445321273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83911 + ... + 126220.

It is an arithmetic number, because the mean of its divisors is an integer number (666958968).

Almost surely, 2^4445321305 is an apocalyptic number.

It is an amenable number.

4445321305 is a deficient number, since it is larger than the sum of its proper divisors (890350439).

4445321305 is a wasteful number, since it uses less digits than its factorization.

4445321305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214367.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 4445321305 is about 66673.2427964922. The cubic root of 4445321305 is about 1644.2495019814.

Adding to 4445321305 its reverse (5031235444), we get a palindrome (9476556749).

The spelling of 4445321305 in words is "four billion, four hundred forty-five million, three hundred twenty-one thousand, three hundred five".