11388222 has 32 divisors (see below), whose sum is σ = 26127360. Its totient is φ = 3673080.

The previous prime is 11388199. The next prime is 11388227. The reversal of 11388222 is 22288311.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11388227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1728 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 2^11388222 is an apocalyptic number.

11388222 is an abundant number, since it is smaller than the sum of its proper divisors (14739138).

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

11388222 is a wasteful number, since it uses less digits than its factorization.

11388222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6845 (or 6839 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 11388222 is about 3374.6439812223. The cubic root of 11388222 is about 224.9841766650.

The spelling of 11388222 in words is "eleven million, three hundred eighty-eight thousand, two hundred twenty-two".