2130930 has 24 divisors (see below), whose sum is σ = 5540652. Its totient is φ = 568224.

The previous prime is 2130929. The next prime is 2130937. The reversal of 2130930 is 390312.

It can be written as a sum of positive squares in 2 ways, for example, as 2099601 + 31329 = 1449^2 + 177^2 .

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

It is an Ulam number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2130937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11749 + ... + 11928.

2^2130930 is an apocalyptic number.

2130930 is an abundant number, since it is smaller than the sum of its proper divisors (3409722).

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

2130930 is a wasteful number, since it uses less digits than its factorization.

2130930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23690 (or 23687 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2130930 is about 1459.7705299122. The cubic root of 2130930 is about 128.6835582657.

The spelling of 2130930 in words is "two million, one hundred thirty thousand, nine hundred thirty".