2011530 has 32 divisors (see below), whose sum is σ = 5083200. Its totient is φ = 508032.

The previous prime is 2011517. The next prime is 2011531. The reversal of 2011530 is 351102.

It is not an unprimeable number, because it can be changed into a prime (2011531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195 + ... + 2334.

It is an arithmetic number, because the mean of its divisors is an integer number (158850).

2^2011530 is an apocalyptic number.

2011530 is an abundant number, since it is smaller than the sum of its proper divisors (3071670).

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

2011530 is a wasteful number, since it uses less digits than its factorization.

2011530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 2011530 is about 1418.2841746279. The cubic root of 2011530 is about 126.2337560383.

Adding to 2011530 its reverse (351102), we get a palindrome (2362632).

The spelling of 2011530 in words is "two million, eleven thousand, five hundred thirty".