2109930 has 32 divisors (see below), whose sum is σ = 5163264. Its totient is φ = 551616.

The previous prime is 2109911. The next prime is 2109941. The reversal of 2109930 is 399012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2109930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 927 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (161352).

2^2109930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2109930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2581632).

2109930 is an abundant number, since it is smaller than the sum of its proper divisors (3053334).

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

2109930 is a wasteful number, since it uses less digits than its factorization.

2109930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 2109930 is about 1452.5598094399. The cubic root of 2109930 is about 128.2594428562.

The spelling of 2109930 in words is "two million, one hundred nine thousand, nine hundred thirty".