818448445 has 8 divisors (see below), whose sum is σ = 1024839936. Its totient is φ = 626290896.

The previous prime is 818448443. The next prime is 818448487. The reversal of 818448445 is 544844818.

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

It is a cyclic number.

It is not a de Polignac number, because 818448445 - 2¹ = 818448443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 818448395 and 818448404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818448443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3558357 + ... + 3558586.

It is an arithmetic number, because the mean of its divisors is an integer number (128104992).

Almost surely, 2^818448445 is an apocalyptic number.

It is an amenable number.

818448445 is a deficient number, since it is larger than the sum of its proper divisors (206391491).

818448445 is a wasteful number, since it uses less digits than its factorization.

818448445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116971.

The product of its digits is 655360, while the sum is 46.

The square root of 818448445 is about 28608.5379738287. The cubic root of 818448445 is about 935.3994480346.

The spelling of 818448445 in words is "eight hundred eighteen million, four hundred forty-eight thousand, four hundred forty-five".