818445044 has 12 divisors (see below), whose sum is σ = 1432479300. Its totient is φ = 409165248.

The previous prime is 818445013. The next prime is 818445049. The reversal of 818445044 is 440544818.

818445044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 218684944 + 599760100 = 14788^2 + 24490^2 .

It is a junction number, because it is equal to n+sod(n) for n = 818444989 and 818445007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818445049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47192 + ... + 62160.

It is an arithmetic number, because the mean of its divisors is an integer number (119373275).

Almost surely, 2^818445044 is an apocalyptic number.

It is an amenable number.

818445044 is a deficient number, since it is larger than the sum of its proper divisors (614034256).

818445044 is a wasteful number, since it uses less digits than its factorization.

818445044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28642 (or 28640 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 38.

The square root of 818445044 is about 28608.4785334698. The cubic root of 818445044 is about 935.3981523724.

The spelling of 818445044 in words is "eight hundred eighteen million, four hundred forty-five thousand, forty-four".