11228665 has 32 divisors (see below), whose sum is σ = 16220160. Its totient is φ = 7300800.

The previous prime is 11228663. The next prime is 11228671. The reversal of 11228665 is 56682211.

It is not a de Polignac number, because 11228665 - 2¹ = 11228663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (11228663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85650 + ... + 85780.

It is an arithmetic number, because the mean of its divisors is an integer number (506880).

Almost surely, 2^11228665 is an apocalyptic number.

It is an amenable number.

11228665 is a deficient number, since it is larger than the sum of its proper divisors (4991495).

11228665 is a wasteful number, since it uses less digits than its factorization.

11228665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

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

The square root of 11228665 is about 3350.9200229191. The cubic root of 11228665 is about 223.9285021068.

The spelling of 11228665 in words is "eleven million, two hundred twenty-eight thousand, six hundred sixty-five".