800409444 has 24 divisors (see below), whose sum is σ = 1868082720. Its totient is φ = 266737344.

The previous prime is 800409443. The next prime is 800409529. The reversal of 800409444 is 444904008.

It is not an unprimeable number, because it can be changed into a prime (800409443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82312 + ... + 91520.

It is an arithmetic number, because the mean of its divisors is an integer number (77836780).

Almost surely, 2^800409444 is an apocalyptic number.

It is an amenable number.

800409444 is an abundant number, since it is smaller than the sum of its proper divisors (1067673276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800409444 is a wasteful number, since it uses less digits than its factorization.

800409444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16459 (or 16457 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 800409444 is about 28291.5083373086. The cubic root of 800409444 is about 928.4761122698.

The spelling of 800409444 in words is "eight hundred million, four hundred nine thousand, four hundred forty-four".