11404805 has 8 divisors (see below), whose sum is σ = 13944312. Its totient is φ = 8951488.

The previous prime is 11404777. The next prime is 11404817. The reversal of 11404805 is 50840411.

It can be written as a sum of positive squares in 4 ways, for example, as 101761 + 11303044 = 319^2 + 3362^2 .

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

It is not a de Polignac number, because 11404805 - 2⁶ = 11404741 is a prime.

It is a Duffinian number.

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, 21254 + ... + 21783.

It is an arithmetic number, because the mean of its divisors is an integer number (1743039).

Almost surely, 2^11404805 is an apocalyptic number.

It is an amenable number.

11404805 is a deficient number, since it is larger than the sum of its proper divisors (2539507).

11404805 is an equidigital number, since it uses as much as digits as its factorization.

11404805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43095.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 11404805 is about 3377.1000873531. The cubic root of 11404805 is about 225.0933275385.

The spelling of 11404805 in words is "eleven million, four hundred four thousand, eight hundred five".