444489312 has 24 divisors (see below), whose sum is σ = 1166784696. Its totient is φ = 148163072.

The previous prime is 444489299. The next prime is 444489317. The reversal of 444489312 is 213984444.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444489317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314953 + ... + 2315144.

It is an arithmetic number, because the mean of its divisors is an integer number (48616029).

Almost surely, 2^444489312 is an apocalyptic number.

It is an amenable number.

444489312 is an abundant number, since it is smaller than the sum of its proper divisors (722295384).

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

444489312 is a wasteful number, since it uses less digits than its factorization.

444489312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630110 (or 4630102 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 444489312 is about 21082.9151684486. The cubic root of 444489312 is about 763.1685077697.

The spelling of 444489312 in words is "four hundred forty-four million, four hundred eighty-nine thousand, three hundred twelve".