444449568 has 48 divisors (see below), whose sum is σ = 1168231680. Its totient is φ = 147952896.

The previous prime is 444449561. The next prime is 444449609. The reversal of 444449568 is 865944444.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (444449561) 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, 81553 + ... + 86831.

It is an arithmetic number, because the mean of its divisors is an integer number (24338160).

Almost surely, 2^444449568 is an apocalyptic number.

444449568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

444449568 is an abundant number, since it is smaller than the sum of its proper divisors (723782112).

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

444449568 is a wasteful number, since it uses less digits than its factorization.

444449568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6169 (or 6161 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 48.

The square root of 444449568 is about 21081.9725832285. The cubic root of 444449568 is about 763.1457608611.

The spelling of 444449568 in words is "four hundred forty-four million, four hundred forty-nine thousand, five hundred sixty-eight".