11388755 has 16 divisors (see below), whose sum is σ = 15842304. Its totient is φ = 7697760.

The previous prime is 11388743. The next prime is 11388791. The reversal of 11388755 is 55788311.

It is not a de Polignac number, because 11388755 - 2¹⁰ = 11387731 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194 + ... + 4776.

It is an arithmetic number, because the mean of its divisors is an integer number (990144).

Almost surely, 2^11388755 is an apocalyptic number.

11388755 is a deficient number, since it is larger than the sum of its proper divisors (4453549).

11388755 is an equidigital number, since it uses as much as digits as its factorization.

11388755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4666.

The product of its digits is 33600, while the sum is 38.

The square root of 11388755 is about 3374.7229515917. The cubic root of 11388755 is about 224.9876865689.

The spelling of 11388755 in words is "eleven million, three hundred eighty-eight thousand, seven hundred fifty-five".