11809450 has 48 divisors (see below), whose sum is σ = 23927040. Its totient is φ = 4320000.

The previous prime is 11809379. The next prime is 11809453. The reversal of 11809450 is 5490811.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11809453) 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 23 ways as a sum of consecutive naturals, for example, 29250 + ... + 29650.

It is an arithmetic number, because the mean of its divisors is an integer number (498480).

Almost surely, 2^11809450 is an apocalyptic number.

11809450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11809450 is an abundant number, since it is smaller than the sum of its proper divisors (12117590).

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

11809450 is a wasteful number, since it uses less digits than its factorization.

11809450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 11809450 is about 3436.4880328615. The cubic root of 11809450 is about 227.7245699413.

The spelling of 11809450 in words is "eleven million, eight hundred nine thousand, four hundred fifty".