22002239 has 8 divisors (see below), whose sum is σ = 25175040. Its totient is φ = 18836856.

The previous prime is 22002217. The next prime is 22002257. The reversal of 22002239 is 93220022.

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

It is a cyclic number.

It is not a de Polignac number, because 22002239 - 2²⁰ = 20953663 is a prime.

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 22002239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8042 + ... + 10424.

It is an arithmetic number, because the mean of its divisors is an integer number (3146880).

Almost surely, 2^22002239 is an apocalyptic number.

22002239 is a deficient number, since it is larger than the sum of its proper divisors (3172801).

22002239 is a wasteful number, since it uses less digits than its factorization.

22002239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 22002239 is about 4690.6544319530. The cubic root of 22002239 is about 280.2134384492.

It can be divided in two parts, 220022 and 39, that multiplied together give a palindrome (8580858).

The spelling of 22002239 in words is "twenty-two million, two thousand, two hundred thirty-nine".