11040405 has 8 divisors (see below), whose sum is σ = 17664672. Its totient is φ = 5888208.

The previous prime is 11040383. The next prime is 11040413. The reversal of 11040405 is 50404011.

11040405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11040405 - 2¹³ = 11032213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 736027 = 11040405 / (1 + 1 + 0 + 4 + 0 + 4 + 0 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367999 + ... + 368028.

It is an arithmetic number, because the mean of its divisors is an integer number (2208084).

Almost surely, 2^11040405 is an apocalyptic number.

11040405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11040405 is a deficient number, since it is larger than the sum of its proper divisors (6624267).

11040405 is an equidigital number, since it uses as much as digits as its factorization.

11040405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736035.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 11040405 is about 3322.7104899464. The cubic root of 11040405 is about 222.6699791042.

Adding to 11040405 its reverse (50404011), we get a palindrome (61444416).

The spelling of 11040405 in words is "eleven million, forty thousand, four hundred five".