11530407 has 24 divisors (see below), whose sum is σ = 18139264. Its totient is φ = 6378624.

The previous prime is 11530391. The next prime is 11530417. The reversal of 11530407 is 70403511.

It is not a de Polignac number, because 11530407 - 2⁴ = 11530391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530417) 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, 101983 + ... + 102095.

Almost surely, 2^11530407 is an apocalyptic number.

11530407 is a deficient number, since it is larger than the sum of its proper divisors (6608857).

11530407 is an equidigital number, since it uses as much as digits as its factorization.

11530407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 11530407 is about 3395.6452994976. The cubic root of 11530407 is about 225.9166359201.

Adding to 11530407 its reverse (70403511), we get a palindrome (81933918).

The spelling of 11530407 in words is "eleven million, five hundred thirty thousand, four hundred seven".