444613545 has 12 divisors (see below), whose sum is σ = 770663556. Its totient is φ = 237127200.

The previous prime is 444613517. The next prime is 444613549. The reversal of 444613545 is 545316444.

It can be written as a sum of positive squares in 2 ways, for example, as 135978921 + 308634624 = 11661^2 + 17568^2 .

It is not a de Polignac number, because 444613545 - 2⁵ = 444613513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444613549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4940106 + ... + 4940195.

It is an arithmetic number, because the mean of its divisors is an integer number (64221963).

Almost surely, 2^444613545 is an apocalyptic number.

444613545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

444613545 is a deficient number, since it is larger than the sum of its proper divisors (326050011).

444613545 is a wasteful number, since it uses less digits than its factorization.

444613545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9880312 (or 9880309 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 444613545 is about 21085.8612581986. The cubic root of 444613545 is about 763.2396020038.

Adding to 444613545 its reverse (545316444), we get a palindrome (989929989).

The spelling of 444613545 in words is "four hundred forty-four million, six hundred thirteen thousand, five hundred forty-five".