801899844 has 48 divisors (see below), whose sum is σ = 1912651776. Its totient is φ = 261424800.

The previous prime is 801899831. The next prime is 801899893. The reversal of 801899844 is 448998108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104499 + ... + 111909.

It is an arithmetic number, because the mean of its divisors is an integer number (39846912).

Almost surely, 2^801899844 is an apocalyptic number.

It is an amenable number.

801899844 is an abundant number, since it is smaller than the sum of its proper divisors (1110751932).

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

801899844 is a wasteful number, since it uses less digits than its factorization.

801899844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7616 (or 7614 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 801899844 is about 28317.8361461465. The cubic root of 801899844 is about 929.0520436654.

The spelling of 801899844 in words is "eight hundred one million, eight hundred ninety-nine thousand, eight hundred forty-four".