445166650 has 12 divisors (see below), whose sum is σ = 828010062. Its totient is φ = 178066640.

The previous prime is 445166627. The next prime is 445166653. The reversal of 445166650 is 56661544.

It can be written as a sum of positive squares in 3 ways, for example, as 425885769 + 19280881 = 20637^2 + 4391^2 .

It is not an unprimeable number, because it can be changed into a prime (445166653) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 4451617 + ... + 4451716.

Almost surely, 2^445166650 is an apocalyptic number.

445166650 is a deficient number, since it is larger than the sum of its proper divisors (382843412).

445166650 is a wasteful number, since it uses less digits than its factorization.

445166650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8903345 (or 8903340 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 445166650 is about 21098.9727238081. The cubic root of 445166650 is about 763.5559641657. Note that the first 3 decimals are identical.

The spelling of 445166650 in words is "four hundred forty-five million, one hundred sixty-six thousand, six hundred fifty".