11008530 has 72 divisors (see below), whose sum is σ = 31144932. Its totient is φ = 2681856.

The previous prime is 11008511. The next prime is 11008549. The reversal of 11008530 is 3580011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11008511) and next prime (11008549).

It can be written as a sum of positive squares in 6 ways, for example, as 2241009 + 8767521 = 1497^2 + 2961^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 113442 + ... + 113538.

Almost surely, 2^11008530 is an apocalyptic number.

11008530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11008530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15572466).

11008530 is an abundant number, since it is smaller than the sum of its proper divisors (20136402).

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

11008530 is a wasteful number, since it uses less digits than its factorization.

11008530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 11008530 is about 3317.9104870385. The cubic root of 11008530 is about 222.4554807196.

Adding to 11008530 its reverse (3580011), we get a palindrome (14588541).

The spelling of 11008530 in words is "eleven million, eight thousand, five hundred thirty".