444811005 has 12 divisors (see below), whose sum is σ = 771005820. Its totient is φ = 237232512.

The previous prime is 444810991. The next prime is 444811039. The reversal of 444811005 is 500118444.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 215561124 + 229249881 = 14682^2 + 15141^2 .

It is not a de Polignac number, because 444811005 - 2⁸ = 444810749 is a prime.

It is a super-2 number, since 2×444811005² = 395713660338220050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 444811005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4942300 + ... + 4942389.

It is an arithmetic number, because the mean of its divisors is an integer number (64250485).

Almost surely, 2^444811005 is an apocalyptic number.

444811005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

444811005 is a deficient number, since it is larger than the sum of its proper divisors (326194815).

444811005 is a wasteful number, since it uses less digits than its factorization.

444811005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9884700 (or 9884697 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 444811005 is about 21090.5430228811. The cubic root of 444811005 is about 763.3525742604.

Adding to 444811005 its reverse (500118444), we get a palindrome (944929449).

The spelling of 444811005 in words is "four hundred forty-four million, eight hundred eleven thousand, five".