805044243 has 16 divisors (see below), whose sum is σ = 1088825760. Its totient is φ = 529030656.

The previous prime is 805044223. The next prime is 805044257. The reversal of 805044243 is 342440508.

It is not a de Polignac number, because 805044243 - 2⁵ = 805044211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 805044243.

It is not an unprimeable number, because it can be changed into a prime (805044223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58171 + ... + 70667.

It is an arithmetic number, because the mean of its divisors is an integer number (68051610).

Almost surely, 2^805044243 is an apocalyptic number.

805044243 is a deficient number, since it is larger than the sum of its proper divisors (283781517).

805044243 is a wasteful number, since it uses less digits than its factorization.

805044243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 805044243 is about 28373.3015879365. The cubic root of 805044243 is about 930.2647887486.

The spelling of 805044243 in words is "eight hundred five million, forty-four thousand, two hundred forty-three".