4090189 has 4 divisors (see below), whose sum is σ = 4231260. Its totient is φ = 3949120.

The previous prime is 4090153. The next prime is 4090193. The reversal of 4090189 is 9810904.

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 697225 + 3392964 = 835^2 + 1842^2 .

It is a cyclic number.

It is not a de Polignac number, because 4090189 - 2⁷ = 4090061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4090189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70492 + ... + 70549.

It is an arithmetic number, because the mean of its divisors is an integer number (1057815).

Almost surely, 2^4090189 is an apocalyptic number.

It is an amenable number.

4090189 is a deficient number, since it is larger than the sum of its proper divisors (141071).

4090189 is a wasteful number, since it uses less digits than its factorization.

4090189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141070.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 4090189 is about 2022.4215683185. The cubic root of 4090189 is about 159.9243001277.

The spelling of 4090189 in words is "four million, ninety thousand, one hundred eighty-nine".