22840022 has 8 divisors (see below), whose sum is σ = 34280400. Its totient is φ = 11413224.

The previous prime is 22840019. The next prime is 22840031. The reversal of 22840022 is 22004822.

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

It is a junction number, because it is equal to n+sod(n) for n = 22839976 and 22840003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4304 + ... + 8012.

It is an arithmetic number, because the mean of its divisors is an integer number (4285050).

Almost surely, 2^22840022 is an apocalyptic number.

22840022 is a deficient number, since it is larger than the sum of its proper divisors (11440378).

22840022 is a wasteful number, since it uses less digits than its factorization.

22840022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 22840022 is about 4779.1235598172. The cubic root of 22840022 is about 283.7258065758.

Adding to 22840022 its reverse (22004822), we get a palindrome (44844844).

The spelling of 22840022 in words is "twenty-two million, eight hundred forty thousand, twenty-two".