22234189 has 4 divisors (see below), whose sum is σ = 22653756. Its totient is φ = 21814624.

The previous prime is 22234187. The next prime is 22234217. The reversal of 22234189 is 98143222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98143222 = 2 ⋅49071611.

It can be written as a sum of positive squares in 2 ways, for example, as 8970025 + 13264164 = 2995^2 + 3642^2 .

It is a cyclic number.

It is not a de Polignac number, because 22234189 - 2¹ = 22234187 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 22234189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22234187) 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, 209704 + ... + 209809.

It is an arithmetic number, because the mean of its divisors is an integer number (5663439).

Almost surely, 2^22234189 is an apocalyptic number.

It is an amenable number.

22234189 is a deficient number, since it is larger than the sum of its proper divisors (419567).

22234189 is an equidigital number, since it uses as much as digits as its factorization.

22234189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419566.

The product of its digits is 6912, while the sum is 31.

The square root of 22234189 is about 4715.3143055368. The cubic root of 22234189 is about 281.1946785676.

The spelling of 22234189 in words is "twenty-two million, two hundred thirty-four thousand, one hundred eighty-nine".