444649648 has 20 divisors (see below), whose sum is σ = 877765248. Its totient is φ = 218129600.

The previous prime is 444649631. The next prime is 444649651. The reversal of 444649648 is 846946444.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261328 + ... + 263023.

Almost surely, 2^444649648 is an apocalyptic number.

It is an amenable number.

444649648 is a deficient number, since it is larger than the sum of its proper divisors (433115600).

444649648 is a wasteful number, since it uses less digits than its factorization.

444649648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524412 (or 524406 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 49.

The square root of 444649648 is about 21086.7173358017. The cubic root of 444649648 is about 763.2602600140.

The spelling of 444649648 in words is "four hundred forty-four million, six hundred forty-nine thousand, six hundred forty-eight".