444312018 has 24 divisors (see below), whose sum is σ = 975866268. Its totient is φ = 146074752.

The previous prime is 444312007. The next prime is 444312019. The reversal of 444312018 is 810213444.

It can be written as a sum of positive squares in 2 ways, for example, as 381538089 + 62773929 = 19533^2 + 7923^2 .

It is a junction number, because it is equal to n+sod(n) for n = 444311982 and 444312000.

It is not an unprimeable number, because it can be changed into a prime (444312019) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 167755 + ... + 170382.

Almost surely, 2^444312018 is an apocalyptic number.

444312018 is an abundant number, since it is smaller than the sum of its proper divisors (531554250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444312018 is a wasteful number, since it uses less digits than its factorization.

444312018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338218 (or 338215 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 444312018 is about 21078.7100648972. The cubic root of 444312018 is about 763.0670256211.

It can be divided in two parts, 4443 and 12018, that added together give a palindrome (16461).

The spelling of 444312018 in words is "four hundred forty-four million, three hundred twelve thousand, eighteen".