445945845 has 16 divisors (see below), whose sum is σ = 717253632. Its totient is φ = 236591040.

The previous prime is 445945837. The next prime is 445945849. The reversal of 445945845 is 548549544.

It is not a de Polignac number, because 445945845 - 2³ = 445945837 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 445945794 and 445945803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445945849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74962 + ... + 80691.

It is an arithmetic number, because the mean of its divisors is an integer number (44828352).

Almost surely, 2^445945845 is an apocalyptic number.

It is an amenable number.

445945845 is a deficient number, since it is larger than the sum of its proper divisors (271307787).

445945845 is a wasteful number, since it uses less digits than its factorization.

445945845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155852.

The product of its digits is 2304000, while the sum is 48.

The square root of 445945845 is about 21117.4298862338. The cubic root of 445945845 is about 764.0011998236.

The spelling of 445945845 in words is "four hundred forty-five million, nine hundred forty-five thousand, eight hundred forty-five".