4144345445 has 4 divisors (see below), whose sum is σ = 4973214540. Its totient is φ = 3315476352.

The previous prime is 4144345421. The next prime is 4144345463. The reversal of 4144345445 is 5445434414.

4144345445 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.

It can be written as a sum of positive squares in 2 ways, for example, as 2226518596 + 1917826849 = 47186^2 + 43793^2 .

It is a cyclic number.

It is not a de Polignac number, because 4144345445 - 2¹² = 4144341349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4144345399 and 4144345408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414434540 + ... + 414434549.

It is an arithmetic number, because the mean of its divisors is an integer number (1243303635).

Almost surely, 2^4144345445 is an apocalyptic number.

It is an amenable number.

4144345445 is a deficient number, since it is larger than the sum of its proper divisors (828869095).

4144345445 is an equidigital number, since it uses as much as digits as its factorization.

4144345445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828869094.

The product of its digits is 307200, while the sum is 38.

The square root of 4144345445 is about 64376.5908152956. The cubic root of 4144345445 is about 1606.2703742211.

Adding to 4144345445 its reverse (5445434414), we get a palindrome (9589779859).

The spelling of 4144345445 in words is "four billion, one hundred forty-four million, three hundred forty-five thousand, four hundred forty-five".