11328481 has 4 divisors (see below), whose sum is σ = 11337264. Its totient is φ = 11319700.

The previous prime is 11328467. The next prime is 11328497. The reversal of 11328481 is 18482311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11328481 - 2⁷ = 11328353 is a prime.

It is a super-2 number, since 2×11328481² = 256668963534722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11328431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (2834316).

Almost surely, 2^11328481 is an apocalyptic number.

It is an amenable number.

11328481 is a deficient number, since it is larger than the sum of its proper divisors (8783).

11328481 is an equidigital number, since it uses as much as digits as its factorization.

11328481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8782.

The product of its digits is 1536, while the sum is 28.

The square root of 11328481 is about 3365.7808900759. The cubic root of 11328481 is about 224.5900750150.

The spelling of 11328481 in words is "eleven million, three hundred twenty-eight thousand, four hundred eighty-one".