445549768 has 8 divisors (see below), whose sum is σ = 835405830. Its totient is φ = 222774880.

The previous prime is 445549759. The next prime is 445549777. The reversal of 445549768 is 867945544.

It is an interprime number because it is at equal distance from previous prime (445549759) and next prime (445549777).

It can be written as a sum of positive squares in only one way, i.e., 297148644 + 148401124 = 17238^2 + 12182^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27846853 + ... + 27846868.

Almost surely, 2^445549768 is an apocalyptic number.

It is an amenable number.

445549768 is a deficient number, since it is larger than the sum of its proper divisors (389856062).

445549768 is a wasteful number, since it uses less digits than its factorization.

445549768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55693727 (or 55693723 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The square root of 445549768 is about 21108.0498388648. The cubic root of 445549768 is about 763.7749444469.

The spelling of 445549768 in words is "four hundred forty-five million, five hundred forty-nine thousand, seven hundred sixty-eight".