4918189 has 4 divisors (see below), whose sum is σ = 4963420. Its totient is φ = 4872960.

The previous prime is 4918187. The next prime is 4918259. The reversal of 4918189 is 9818194.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1525225 + 3392964 = 1235^2 + 1842^2 .

It is a cyclic number.

It is not a de Polignac number, because 4918189 - 2¹ = 4918187 is a prime.

It is a Duffinian number.

4918189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4918183) 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, 22452 + ... + 22669.

It is an arithmetic number, because the mean of its divisors is an integer number (1240855).

Almost surely, 2^4918189 is an apocalyptic number.

It is an amenable number.

4918189 is a deficient number, since it is larger than the sum of its proper divisors (45231).

4918189 is a wasteful number, since it uses less digits than its factorization.

4918189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45230.

The product of its digits is 20736, while the sum is 40.

The square root of 4918189 is about 2217.6990327815. The cubic root of 4918189 is about 170.0598289993.

The spelling of 4918189 in words is "four million, nine hundred eighteen thousand, one hundred eighty-nine".