445768 has 8 divisors (see below), whose sum is σ = 835830. Its totient is φ = 222880.

The previous prime is 445747. The next prime is 445769. The reversal of 445768 is 867544.

It can be written as a sum of positive squares in only one way, i.e., 232324 + 213444 = 482^2 + 462^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (445769) by changing a digit.

445768 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27853 + ... + 27868.

2⁴⁴⁵⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

445768 is a deficient number, since it is larger than the sum of its proper divisors (390062).

445768 is a wasteful number, since it uses less digits than its factorization.

445768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55727 (or 55723 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 445768 is about 667.6585953914. The cubic root of 445768 is about 76.3899624067.

The spelling of 445768 in words is "four hundred forty-five thousand, seven hundred sixty-eight".