11665228 has 6 divisors (see below), whose sum is σ = 20414156. Its totient is φ = 5832612.

The previous prime is 11665223. The next prime is 11665231. The reversal of 11665228 is 82256611.

It is a self number, because there is not a number n which added to its sum of digits gives 11665228.

It is not an unprimeable number, because it can be changed into a prime (11665223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1458150 + ... + 1458157.

Almost surely, 2^11665228 is an apocalyptic number.

It is an amenable number.

11665228 is a deficient number, since it is larger than the sum of its proper divisors (8748928).

11665228 is a wasteful number, since it uses less digits than its factorization.

11665228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916311 (or 2916309 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 11665228 is about 3415.4396495912. The cubic root of 11665228 is about 226.7937474623.

The spelling of 11665228 in words is "eleven million, six hundred sixty-five thousand, two hundred twenty-eight".