805444168 has 16 divisors (see below), whose sum is σ = 1516087980. Its totient is φ = 401154048.

The previous prime is 805444141. The next prime is 805444193. The reversal of 805444168 is 861444508.

It can be written as a sum of positive squares in 2 ways, for example, as 672779844 + 132664324 = 25938^2 + 11518^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 805444168.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193821 + ... + 197932.

Almost surely, 2^805444168 is an apocalyptic number.

It is an amenable number.

805444168 is a deficient number, since it is larger than the sum of its proper divisors (710643812).

805444168 is a wasteful number, since it uses less digits than its factorization.

805444168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392016 (or 392012 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 805444168 is about 28380.3482712951. The cubic root of 805444168 is about 930.4188070152.

The spelling of 805444168 in words is "eight hundred five million, four hundred forty-four thousand, one hundred sixty-eight".