2238869 has 4 divisors (see below), whose sum is σ = 2258796. Its totient is φ = 2218944.

The previous prime is 2238823. The next prime is 2238931. The reversal of 2238869 is 9688322.

It is a happy number.

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 18769 + 2220100 = 137^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2238869 - 2¹⁶ = 2173333 is a prime.

It is a super-2 number, since 2×2238869² = 10025068798322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238809) 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, 9794 + ... + 10019.

It is an arithmetic number, because the mean of its divisors is an integer number (564699).

2^2238869 is an apocalyptic number.

It is an amenable number.

2238869 is a deficient number, since it is larger than the sum of its proper divisors (19927).

2238869 is a wasteful number, since it uses less digits than its factorization.

2238869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19926.

The product of its digits is 41472, while the sum is 38.

The square root of 2238869 is about 1496.2850664228. The cubic root of 2238869 is about 130.8206274145.

The spelling of 2238869 in words is "two million, two hundred thirty-eight thousand, eight hundred sixty-nine".