11388722 has 16 divisors (see below), whose sum is σ = 17616192. Its totient is φ = 5518800.

The previous prime is 11388721. The next prime is 11388743. The reversal of 11388722 is 22788311.

It is not an unprimeable number, because it can be changed into a prime (11388721) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12548 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (1101012).

Almost surely, 2^11388722 is an apocalyptic number.

11388722 is a deficient number, since it is larger than the sum of its proper divisors (6227470).

11388722 is a wasteful number, since it uses less digits than its factorization.

11388722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073.

The product of its digits is 5376, while the sum is 32.

The square root of 11388722 is about 3374.7180622979. The cubic root of 11388722 is about 224.9874692610.

The spelling of 11388722 in words is "eleven million, three hundred eighty-eight thousand, seven hundred twenty-two".