800044840 has 32 divisors (see below), whose sum is σ = 2057258880. Its totient is φ = 274300992.

The previous prime is 800044831. The next prime is 800044873. The reversal of 800044840 is 48440008.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 800044799 and 800044808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428372 + ... + 1428931.

It is an arithmetic number, because the mean of its divisors is an integer number (64289340).

Almost surely, 2^800044840 is an apocalyptic number.

It is an amenable number.

800044840 is an abundant number, since it is smaller than the sum of its proper divisors (1257214040).

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

800044840 is a wasteful number, since it uses less digits than its factorization.

800044840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857321 (or 2857317 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 800044840 is about 28285.0639030567. The cubic root of 800044840 is about 928.3351104688.

Adding to 800044840 its reverse (48440008), we get a palindrome (848484848).

The spelling of 800044840 in words is "eight hundred million, forty-four thousand, eight hundred forty".