11440189 has 4 divisors (see below), whose sum is σ = 11719260. Its totient is φ = 11161120.

The previous prime is 11440151. The next prime is 11440199. The reversal of 11440189 is 98104411.

11440189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98104411 = 2657 ⋅36923.

It can be written as a sum of positive squares in 2 ways, for example, as 164025 + 11276164 = 405^2 + 3358^2 .

It is a cyclic number.

It is not a de Polignac number, because 11440189 - 2⁷ = 11440061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11440199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139474 + ... + 139555.

It is an arithmetic number, because the mean of its divisors is an integer number (2929815).

Almost surely, 2^11440189 is an apocalyptic number.

It is an amenable number.

11440189 is a deficient number, since it is larger than the sum of its proper divisors (279071).

11440189 is an equidigital number, since it uses as much as digits as its factorization.

11440189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279070.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 11440189 is about 3382.3348444529. The cubic root of 11440189 is about 225.3258751213.

It can be divided in two parts, 11440 and 189, that multiplied together give a triangular number (2162160 = T₂₀₇₉).

The spelling of 11440189 in words is "eleven million, four hundred forty thousand, one hundred eighty-nine".