11405304 has 24 divisors (see below), whose sum is σ = 30889560. Its totient is φ = 3801744.

The previous prime is 11405297. The next prime is 11405321. The reversal of 11405304 is 40350411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 79132 + ... + 79275.

It is an arithmetic number, because the mean of its divisors is an integer number (1287065).

Almost surely, 2^11405304 is an apocalyptic number.

It is an amenable number.

11405304 is an abundant number, since it is smaller than the sum of its proper divisors (19484256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11405304 is a wasteful number, since it uses less digits than its factorization.

11405304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158419 (or 158412 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 11405304 is about 3377.1739664992. The cubic root of 11405304 is about 225.0966103634.

Adding to 11405304 its reverse (40350411), we get a palindrome (51755715).

The spelling of 11405304 in words is "eleven million, four hundred five thousand, three hundred four".