11405872 has 20 divisors (see below), whose sum is σ = 22639176. Its totient is φ = 5563520.

The previous prime is 11405857. The next prime is 11405873. The reversal of 11405872 is 27850411.

It is a self number, because there is not a number n which added to its sum of digits gives 11405872.

It is not an unprimeable number, because it can be changed into a prime (11405873) 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, 8038 + ... + 9349.

Almost surely, 2^11405872 is an apocalyptic number.

It is an amenable number.

11405872 is a deficient number, since it is larger than the sum of its proper divisors (11233304).

11405872 is a wasteful number, since it uses less digits than its factorization.

11405872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17436 (or 17430 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 11405872 is about 3377.2580594322. The cubic root of 11405872 is about 225.1003470095.

The spelling of 11405872 in words is "eleven million, four hundred five thousand, eight hundred seventy-two".