805018444 has 12 divisors (see below), whose sum is σ = 1438756704. Its totient is φ = 393945104.

The previous prime is 805018427. The next prime is 805018451. The reversal of 805018444 is 444810508.

It is a super-2 number, since 2×805018444² = 1296109390360362272, which contains 22 as substring.

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, 2140819 + ... + 2141194.

It is an arithmetic number, because the mean of its divisors is an integer number (119896392).

Almost surely, 2^805018444 is an apocalyptic number.

It is an amenable number.

805018444 is a deficient number, since it is larger than the sum of its proper divisors (633738260).

805018444 is a wasteful number, since it uses less digits than its factorization.

805018444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282064 (or 4282062 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 805018444 is about 28372.8469491519. The cubic root of 805018444 is about 930.2548513413.

The spelling of 805018444 in words is "eight hundred five million, eighteen thousand, four hundred forty-four".