11209238 has 16 divisors (see below), whose sum is σ = 17238480. Its totient is φ = 5464800.

The previous prime is 11209199. The next prime is 11209243. The reversal of 11209238 is 83290211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16628 + ... + 17288.

It is an arithmetic number, because the mean of its divisors is an integer number (1077405).

Almost surely, 2^11209238 is an apocalyptic number.

11209238 is a deficient number, since it is larger than the sum of its proper divisors (6029242).

11209238 is a wasteful number, since it uses less digits than its factorization.

11209238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 11209238 is about 3348.0200118876. The cubic root of 11209238 is about 223.7992860853.

Adding to 11209238 its reverse (83290211), we get a palindrome (94499449).

The spelling of 11209238 in words is "eleven million, two hundred nine thousand, two hundred thirty-eight".