4381189 has 4 divisors (see below), whose sum is σ = 4638924. Its totient is φ = 4123456.

The previous prime is 4381187. The next prime is 4381249. The reversal of 4381189 is 9811834.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9811834 = 2 ⋅4905917.

It can be written as a sum of positive squares in 2 ways, for example, as 3932289 + 448900 = 1983^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 4381189 - 2¹ = 4381187 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 (4381183) 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, 128842 + ... + 128875.

It is an arithmetic number, because the mean of its divisors is an integer number (1159731).

Almost surely, 2^4381189 is an apocalyptic number.

It is an amenable number.

4381189 is a deficient number, since it is larger than the sum of its proper divisors (257735).

4381189 is a wasteful number, since it uses less digits than its factorization.

4381189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257734.

The product of its digits is 6912, while the sum is 34.

The square root of 4381189 is about 2093.1289974581. The cubic root of 4381189 is about 163.6304015692.

The spelling of 4381189 in words is "four million, three hundred eighty-one thousand, one hundred eighty-nine".