11405004 has 48 divisors (see below), whose sum is σ = 29658720. Its totient is φ = 3386880.

The previous prime is 11404999. The next prime is 11405029. The reversal of 11405004 is 40050411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3264 + ... + 5784.

It is an arithmetic number, because the mean of its divisors is an integer number (617890).

Almost surely, 2^11405004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11405004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14829360).

11405004 is an abundant number, since it is smaller than the sum of its proper divisors (18253716).

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

11405004 is a wasteful number, since it uses less digits than its factorization.

11405004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570 (or 2568 counting only the distinct ones).

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

The square root of 11405004 is about 3377.1295503726. The cubic root of 11405004 is about 225.0946367327.

Adding to 11405004 its reverse (40050411), we get a palindrome (51455415).

The spelling of 11405004 in words is "eleven million, four hundred five thousand, four".