11280404 has 12 divisors (see below), whose sum is σ = 20377728. Its totient is φ = 5458200.

The previous prime is 11280403. The next prime is 11280407. The reversal of 11280404 is 40408211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11280403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45362 + ... + 45609.

It is an arithmetic number, because the mean of its divisors is an integer number (1698144).

Almost surely, 2^11280404 is an apocalyptic number.

It is an amenable number.

11280404 is a deficient number, since it is larger than the sum of its proper divisors (9097324).

11280404 is a wasteful number, since it uses less digits than its factorization.

11280404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91006 (or 91004 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 11280404 is about 3358.6312688356. The cubic root of 11280404 is about 224.2719115048.

Adding to 11280404 its reverse (40408211), we get a palindrome (51688615).

The spelling of 11280404 in words is "eleven million, two hundred eighty thousand, four hundred four".