445025817 has 12 divisors (see below), whose sum is σ = 649057344. Its totient is φ = 293802840.

The previous prime is 445025783. The next prime is 445025821. The reversal of 445025817 is 718520544.

It is not a de Polignac number, because 445025817 - 2²² = 440831513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445025837) 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 11 ways as a sum of consecutive naturals, for example, 239109 + ... + 240962.

It is an arithmetic number, because the mean of its divisors is an integer number (54088112).

Almost surely, 2^445025817 is an apocalyptic number.

It is an amenable number.

445025817 is a deficient number, since it is larger than the sum of its proper divisors (204031527).

445025817 is a wasteful number, since it uses less digits than its factorization.

445025817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480180 (or 480177 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 445025817 is about 21095.6350224401. The cubic root of 445025817 is about 763.4754361065.

The spelling of 445025817 in words is "four hundred forty-five million, twenty-five thousand, eight hundred seventeen".