990110 has 16 divisors (see below), whose sum is σ = 1944432. Its totient is φ = 360000.

The previous prime is 990053. The next prime is 990137. The reversal of 990110 is 11099.

990110 = 295² + 296² + ... + 305².

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

990110 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 4391 + ... + 4610.

It is an arithmetic number, because the mean of its divisors is an integer number (121527).

2⁹⁹⁰¹¹⁰ is an apocalyptic number.

990110 is a deficient number, since it is larger than the sum of its proper divisors (954322).

990110 is a wasteful number, since it uses less digits than its factorization.

990110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9019.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 990110 is about 995.0427126511. The cubic root of 990110 is about 99.6692405212.

It can be divided in two parts, 990 and 110, that multiplied together give a square (108900 = 330²).

The spelling of 990110 in words is "nine hundred ninety thousand, one hundred ten".