445539845 has 8 divisors (see below), whose sum is σ = 538189440. Its totient is φ = 354070800.

The previous prime is 445539841. The next prime is 445539869. The reversal of 445539845 is 548935544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445539845 - 2² = 445539841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445539845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445539841) 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 7 ways as a sum of consecutive naturals, for example, 294305 + ... + 295814.

It is an arithmetic number, because the mean of its divisors is an integer number (67273680).

Almost surely, 2^445539845 is an apocalyptic number.

It is an amenable number.

445539845 is a deficient number, since it is larger than the sum of its proper divisors (92649595).

445539845 is a wasteful number, since it uses less digits than its factorization.

445539845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590275.

The product of its digits is 1728000, while the sum is 47.

The square root of 445539845 is about 21107.8147850506. The cubic root of 445539845 is about 763.7692743021.

The spelling of 445539845 in words is "four hundred forty-five million, five hundred thirty-nine thousand, eight hundred forty-five".