11209442 has 8 divisors (see below), whose sum is σ = 17044716. Its totient is φ = 5527872.

The previous prime is 11209439. The next prime is 11209481. The reversal of 11209442 is 24490211.

It can be written as a sum of positive squares in 2 ways, for example, as 10883401 + 326041 = 3299^2 + 571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 38243 + ... + 38534.

Almost surely, 2^11209442 is an apocalyptic number.

11209442 is a deficient number, since it is larger than the sum of its proper divisors (5835274).

11209442 is an equidigital number, since it uses as much as digits as its factorization.

11209442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76852.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 11209442 is about 3348.0504775167. The cubic root of 11209442 is about 223.8006437386.

Adding to 11209442 its reverse (24490211), we get a palindrome (35699653).

The spelling of 11209442 in words is "eleven million, two hundred nine thousand, four hundred forty-two".