11388666 has 16 divisors (see below), whose sum is σ = 22932000. Its totient is φ = 3770448.

The previous prime is 11388661. The next prime is 11388709. The reversal of 11388666 is 66688311.

It is not an unprimeable number, because it can be changed into a prime (11388661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5476 + ... + 7263.

It is an arithmetic number, because the mean of its divisors is an integer number (1433250).

Almost surely, 2^11388666 is an apocalyptic number.

11388666 is an abundant number, since it is smaller than the sum of its proper divisors (11543334).

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

11388666 is a wasteful number, since it uses less digits than its factorization.

11388666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12893.

The product of its digits is 41472, while the sum is 39.

The square root of 11388666 is about 3374.7097652983. The cubic root of 11388666 is about 224.9871004950.

The spelling of 11388666 in words is "eleven million, three hundred eighty-eight thousand, six hundred sixty-six".