1990110 has 16 divisors (see below), whose sum is σ = 4776336. Its totient is φ = 530688.

The previous prime is 1990103. The next prime is 1990111. The reversal of 1990110 is 110991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33139 + ... + 33198.

It is an arithmetic number, because the mean of its divisors is an integer number (298521).

2^1990110 is an apocalyptic number.

1990110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1990110 is an abundant number, since it is smaller than the sum of its proper divisors (2786226).

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

1990110 is a wasteful number, since it uses less digits than its factorization.

1990110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66347.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 1990110 is about 1410.7125858941. The cubic root of 1990110 is about 125.7840847387.

The spelling of 1990110 in words is "one million, nine hundred ninety thousand, one hundred ten".