11409828 has 12 divisors (see below), whose sum is σ = 26622960. Its totient is φ = 3803272.

The previous prime is 11409821. The next prime is 11409841. The reversal of 11409828 is 82890411.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (11409821) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 475398 + ... + 475421.

It is an arithmetic number, because the mean of its divisors is an integer number (2218580).

Almost surely, 2^11409828 is an apocalyptic number.

It is an amenable number.

11409828 is an abundant number, since it is smaller than the sum of its proper divisors (15213132).

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

11409828 is a wasteful number, since it uses less digits than its factorization.

11409828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950826 (or 950824 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 11409828 is about 3377.8436908774. The cubic root of 11409828 is about 225.1263685195.

The spelling of 11409828 in words is "eleven million, four hundred nine thousand, eight hundred twenty-eight".