999044 has 12 divisors (see below), whose sum is σ = 1755600. Its totient is φ = 497448.

The previous prime is 999043. The next prime is 999049. The reversal of 999044 is 440999.

It is a junction number, because it is equal to n+sod(n) for n = 998995 and 999013.

It is not an unprimeable number, because it can be changed into a prime (999043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187 + ... + 1845.

It is an arithmetic number, because the mean of its divisors is an integer number (146300).

2⁹⁹⁹⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

999044 is a deficient number, since it is larger than the sum of its proper divisors (756556).

999044 is a wasteful number, since it uses less digits than its factorization.

999044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 999044 is about 999.5218857034. The cubic root of 999044 is about 99.9681231731.

The spelling of 999044 in words is "nine hundred ninety-nine thousand, forty-four".