11188894 has 4 divisors (see below), whose sum is σ = 16783344. Its totient is φ = 5594446.

The previous prime is 11188889. The next prime is 11188897. The reversal of 11188894 is 49888111.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11188897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2797222 + ... + 2797225.

It is an arithmetic number, because the mean of its divisors is an integer number (4195836).

Almost surely, 2^11188894 is an apocalyptic number.

11188894 is a deficient number, since it is larger than the sum of its proper divisors (5594450).

11188894 is an equidigital number, since it uses as much as digits as its factorization.

11188894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5594449.

The product of its digits is 18432, while the sum is 40.

The square root of 11188894 is about 3344.9804184778. The cubic root of 11188894 is about 223.6638106289.

The spelling of 11188894 in words is "eleven million, one hundred eighty-eight thousand, eight hundred ninety-four".