444608649 has 16 divisors (see below), whose sum is σ = 659034240. Its totient is φ = 296246160.

The previous prime is 444608641. The next prime is 444608677. The reversal of 444608649 is 946806444.

It is not a de Polignac number, because 444608649 - 2³ = 444608641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444608641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68359 + ... + 74579.

It is an arithmetic number, because the mean of its divisors is an integer number (41189640).

Almost surely, 2^444608649 is an apocalyptic number.

It is an amenable number.

444608649 is a deficient number, since it is larger than the sum of its proper divisors (214425591).

444608649 is a wasteful number, since it uses less digits than its factorization.

444608649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8877 (or 8871 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 444608649 is about 21085.7451611272. The cubic root of 444608649 is about 763.2368004436.

The spelling of 444608649 in words is "four hundred forty-four million, six hundred eight thousand, six hundred forty-nine".