11180628 has 36 divisors (see below), whose sum is σ = 29926260. Its totient is φ = 3507456.

The previous prime is 11180627. The next prime is 11180639. The reversal of 11180628 is 82608111.

It can be written as a sum of positive squares in 2 ways, for example, as 8398404 + 2782224 = 2898^2 + 1668^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11180621) 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 11 ways as a sum of consecutive naturals, for example, 8523 + ... + 9746.

It is an arithmetic number, because the mean of its divisors is an integer number (831285).

Almost surely, 2^11180628 is an apocalyptic number.

11180628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11180628 is an abundant number, since it is smaller than the sum of its proper divisors (18745632).

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

11180628 is a wasteful number, since it uses less digits than its factorization.

11180628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18296 (or 18291 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 11180628 is about 3343.7446074723. The cubic root of 11180628 is about 223.6087184835.

Adding to 11180628 its reverse (82608111), we get a palindrome (93788739).

The spelling of 11180628 in words is "eleven million, one hundred eighty thousand, six hundred twenty-eight".