2189269 has 4 divisors (see below), whose sum is σ = 2193196. Its totient is φ = 2185344.

The previous prime is 2189267. The next prime is 2189273. The reversal of 2189269 is 9629812.

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 1656369 + 532900 = 1287^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 2189269 - 2¹ = 2189267 is a prime.

It is a super-2 number, since 2×2189269² = 9585797508722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2 + 1 + 8⁵ + 9² + 2²¹ + 6³ + 9⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189267) 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, 954 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (548299).

2^2189269 is an apocalyptic number.

It is an amenable number.

2189269 is a deficient number, since it is larger than the sum of its proper divisors (3927).

2189269 is an equidigital number, since it uses as much as digits as its factorization.

2189269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926.

The product of its digits is 15552, while the sum is 37.

The square root of 2189269 is about 1479.6178560696. The cubic root of 2189269 is about 129.8473355829.

The spelling of 2189269 in words is "two million, one hundred eighty-nine thousand, two hundred sixty-nine".