2390189 has 4 divisors (see below), whose sum is σ = 2402400. Its totient is φ = 2377980.

The previous prime is 2390159. The next prime is 2390191. The reversal of 2390189 is 9810932.

2390189 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2390189 - 2¹⁶ = 2324653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5807 + ... + 6204.

It is an arithmetic number, because the mean of its divisors is an integer number (600600).

2^2390189 is an apocalyptic number.

It is an amenable number.

2390189 is a deficient number, since it is larger than the sum of its proper divisors (12211).

2390189 is a wasteful number, since it uses less digits than its factorization.

2390189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12210.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 2390189 is about 1546.0236091341. The cubic root of 2390189 is about 133.7039017775.

The spelling of 2390189 in words is "two million, three hundred ninety thousand, one hundred eighty-nine".