2109630 has 16 divisors (see below), whose sum is σ = 5063184. Its totient is φ = 562560.

The previous prime is 2109619. The next prime is 2109641. The reversal of 2109630 is 369012.

It is an interprime number because it is at equal distance from previous prime (2109619) and next prime (2109641).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2109597 and 2109606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35131 + ... + 35190.

It is an arithmetic number, because the mean of its divisors is an integer number (316449).

2^2109630 is an apocalyptic number.

2109630 is an abundant number, since it is smaller than the sum of its proper divisors (2953554).

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

2109630 is a wasteful number, since it uses less digits than its factorization.

2109630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70331.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 2109630 is about 1452.4565397973. The cubic root of 2109630 is about 128.2533637198.

The spelling of 2109630 in words is "two million, one hundred nine thousand, six hundred thirty".