11040427 has 4 divisors (see below), whose sum is σ = 11070400. Its totient is φ = 11010456.

The previous prime is 11040413. The next prime is 11040431. The reversal of 11040427 is 72404011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11040427 - 2²³ = 2651819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11040527) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14427 + ... + 15172.

It is an arithmetic number, because the mean of its divisors is an integer number (2767600).

Almost surely, 2^11040427 is an apocalyptic number.

11040427 is a deficient number, since it is larger than the sum of its proper divisors (29973).

11040427 is an equidigital number, since it uses as much as digits as its factorization.

11040427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29972.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 11040427 is about 3322.7138004950. The cubic root of 11040427 is about 222.6701270075.

Adding to 11040427 its reverse (72404011), we get a palindrome (83444438).

The spelling of 11040427 in words is "eleven million, forty thousand, four hundred twenty-seven".