11040309 has 24 divisors (see below), whose sum is σ = 18816512. Its totient is φ = 6104160.

The previous prime is 11040241. The next prime is 11040313. The reversal of 11040309 is 90304011.

11040309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11040309 - 2⁷ = 11040181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11040291 and 11040300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11041309) 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, 874 + ... + 4779.

Almost surely, 2^11040309 is an apocalyptic number.

It is an amenable number.

11040309 is a deficient number, since it is larger than the sum of its proper divisors (7776203).

11040309 is a wasteful number, since it uses less digits than its factorization.

11040309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5697 (or 5694 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 11040309 is about 3322.6960438776. The cubic root of 11040309 is about 222.6693337058.

The spelling of 11040309 in words is "eleven million, forty thousand, three hundred nine".