11243286 has 20 divisors (see below), whose sum is σ = 25193652. Its totient is φ = 3747708.

The previous prime is 11243237. The next prime is 11243291. The reversal of 11243286 is 68234211.

It is a super-2 number, since 2×11243286² = 252822960155592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34540 + ... + 34863.

Almost surely, 2^11243286 is an apocalyptic number.

11243286 is an abundant number, since it is smaller than the sum of its proper divisors (13950366).

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

11243286 is an equidigital number, since it uses as much as digits as its factorization.

11243286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69417 (or 69408 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 11243286 is about 3353.1009528495. The cubic root of 11243286 is about 224.0256534182.

Adding to 11243286 its reverse (68234211), we get a palindrome (79477497).

The spelling of 11243286 in words is "eleven million, two hundred forty-three thousand, two hundred eighty-six".