22006235 has 8 divisors (see below), whose sum is σ = 26434896. Its totient is φ = 17586720.

The previous prime is 22006223. The next prime is 22006241. The reversal of 22006235 is 53260022.

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 22006235 - 2⁸ = 22005979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5312 + ... + 8498.

It is an arithmetic number, because the mean of its divisors is an integer number (3304362).

Almost surely, 2^22006235 is an apocalyptic number.

22006235 is a deficient number, since it is larger than the sum of its proper divisors (4428661).

22006235 is a wasteful number, since it uses less digits than its factorization.

22006235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4573.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 22006235 is about 4691.0803659711. The cubic root of 22006235 is about 280.2304013459.

Adding to 22006235 its reverse (53260022), we get a palindrome (75266257).

The spelling of 22006235 in words is "twenty-two million, six thousand, two hundred thirty-five".