444643368 has 32 divisors (see below), whose sum is σ = 1197117600. Its totient is φ = 136813248.

The previous prime is 444643351. The next prime is 444643369. The reversal of 444643368 is 863346444.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (444643369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712258 + ... + 712881.

It is an arithmetic number, because the mean of its divisors is an integer number (37409925).

Almost surely, 2^444643368 is an apocalyptic number.

It is an amenable number.

444643368 is an abundant number, since it is smaller than the sum of its proper divisors (752474232).

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

444643368 is a wasteful number, since it uses less digits than its factorization.

444643368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425161 (or 1425157 counting only the distinct ones).

The product of its digits is 663552, while the sum is 42.

The square root of 444643368 is about 21086.5684263704. The cubic root of 444643368 is about 763.2566667003.

The spelling of 444643368 in words is "four hundred forty-four million, six hundred forty-three thousand, three hundred sixty-eight".