22182369 has 8 divisors (see below), whose sum is σ = 32265312. Its totient is φ = 13443840.

The previous prime is 22182343. The next prime is 22182379. The reversal of 22182369 is 96328122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22182369 - 2⁵ = 22182337 is a prime.

It is a super-2 number, since 2×22182369² = 984114988904322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 672193 = 22182369 / (2 + 2 + 1 + 8 + 2 + 3 + 6 + 9).

It is not an unprimeable number, because it can be changed into a prime (22182379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336064 + ... + 336129.

It is an arithmetic number, because the mean of its divisors is an integer number (4033164).

Almost surely, 2^22182369 is an apocalyptic number.

It is an amenable number.

22182369 is a deficient number, since it is larger than the sum of its proper divisors (10082943).

22182369 is a wasteful number, since it uses less digits than its factorization.

22182369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672207.

The product of its digits is 10368, while the sum is 33.

The square root of 22182369 is about 4709.8162384535. The cubic root of 22182369 is about 280.9760536493.

Subtracting 22182369 from its reverse (96328122), we obtain a triangular number (74145753 = T₁₂₁₇₇).

The spelling of 22182369 in words is "twenty-two million, one hundred eighty-two thousand, three hundred sixty-nine".