11722266 has 32 divisors (see below), whose sum is σ = 26758080. Its totient is φ = 3801168.

The previous prime is 11722201. The next prime is 11722283. The reversal of 11722266 is 66222711.

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

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 15 ways as a sum of consecutive naturals, for example, 936 + ... + 4931.

It is an arithmetic number, because the mean of its divisors is an integer number (836190).

Almost surely, 2^11722266 is an apocalyptic number.

11722266 is an abundant number, since it is smaller than the sum of its proper divisors (15035814).

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

11722266 is a wasteful number, since it uses less digits than its factorization.

11722266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915 (or 5909 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 11722266 is about 3423.7794905630. The cubic root of 11722266 is about 227.1627882627.

Adding to 11722266 its reverse (66222711), we get a palindrome (77944977).

The spelling of 11722266 in words is "eleven million, seven hundred twenty-two thousand, two hundred sixty-six".