22222389 has 16 divisors (see below), whose sum is σ = 34017920. Its totient is φ = 12640320.

The previous prime is 22222373. The next prime is 22222391. The reversal of 22222389 is 98322222.

It is not a de Polignac number, because 22222389 - 2⁴ = 22222373 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2499 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (2126120).

Almost surely, 2^22222389 is an apocalyptic number.

It is an amenable number.

22222389 is a deficient number, since it is larger than the sum of its proper divisors (11795531).

22222389 is a wasteful number, since it uses less digits than its factorization.

22222389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860.

The product of its digits is 6912, while the sum is 30.

The square root of 22222389 is about 4714.0628973318. The cubic root of 22222389 is about 281.1449250946.

The spelling of 22222389 in words is "twenty-two million, two hundred twenty-two thousand, three hundred eighty-nine".