445284845 has 6 divisors (see below), whose sum is σ = 534398442. Its totient is φ = 356190128.

The previous prime is 445284841. The next prime is 445284871. The reversal of 445284845 is 548482544.

It can be written as a sum of positive squares in 3 ways, for example, as 64995844 + 380289001 = 8062^2 + 19501^2 .

It is not a de Polignac number, because 445284845 - 2² = 445284841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445284796 and 445284805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445284841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42467 + ... + 51903.

It is an arithmetic number, because the mean of its divisors is an integer number (89066407).

Almost surely, 2^445284845 is an apocalyptic number.

It is an amenable number.

445284845 is a deficient number, since it is larger than the sum of its proper divisors (89113597).

445284845 is an frugal number, since it uses more digits than its factorization.

445284845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18879 (or 9442 counting only the distinct ones).

The product of its digits is 819200, while the sum is 44.

The square root of 445284845 is about 21101.7735036655. The cubic root of 445284845 is about 763.6235347493.

The spelling of 445284845 in words is "four hundred forty-five million, two hundred eighty-four thousand, eight hundred forty-five".