801900044 has 24 divisors (see below), whose sum is σ = 1534084608. Its totient is φ = 363741840.

The previous prime is 801900031. The next prime is 801900079. The reversal of 801900044 is 440009108.

It is a junction number, because it is equal to n+sod(n) for n = 801899986 and 801900022.

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 7 ways as a sum of consecutive naturals, for example, 2717 + ... + 40139.

It is an arithmetic number, because the mean of its divisors is an integer number (63920192).

Almost surely, 2^801900044 is an apocalyptic number.

It is an amenable number.

801900044 is a deficient number, since it is larger than the sum of its proper divisors (732184564).

801900044 is a wasteful number, since it uses less digits than its factorization.

801900044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37925 (or 37923 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 801900044 is about 28317.8396774895. The cubic root of 801900044 is about 929.0521209030.

The spelling of 801900044 in words is "eight hundred one million, nine hundred thousand, forty-four".