2112930 has 48 divisors (see below), whose sum is σ = 5820984. Its totient is φ = 529920.

The previous prime is 2112923. The next prime is 2112937. The reversal of 2112930 is 392112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2112923) and next prime (2112937).

It can be written as a sum of positive squares in 4 ways, for example, as 1879641 + 233289 = 1371^2 + 483^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2112937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 840 + ... + 2220.

2^2112930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2910492).

2112930 is an abundant number, since it is smaller than the sum of its proper divisors (3708054).

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

2112930 is a wasteful number, since it uses less digits than its factorization.

2112930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2112930 is about 1453.5921023451. The cubic root of 2112930 is about 128.3202025508.

The spelling of 2112930 in words is "two million, one hundred twelve thousand, nine hundred thirty".