444999168 has 120 divisors (see below), whose sum is σ = 1292662800. Its totient is φ = 147369984.

The previous prime is 444999161. The next prime is 444999173. The reversal of 444999168 is 861999444.

It is a happy number.

444999168 is a `hidden beast` number, since 4 + 4 + 499 + 91 + 68 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444999161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1239373 + ... + 1239731.

It is an arithmetic number, because the mean of its divisors is an integer number (10772190).

Almost surely, 2^444999168 is an apocalyptic number.

444999168 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444999168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646331400).

444999168 is an abundant number, since it is smaller than the sum of its proper divisors (847663632).

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

444999168 is a wasteful number, since it uses less digits than its factorization.

444999168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 633 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 444999168 is about 21095.0033894285. The cubic root of 444999168 is about 763.4601963442.

The spelling of 444999168 in words is "four hundred forty-four million, nine hundred ninety-nine thousand, one hundred sixty-eight".