22208838 has 16 divisors (see below), whose sum is σ = 45949680. Its totient is φ = 7147616.

The previous prime is 22208833. The next prime is 22208903. The reversal of 22208838 is 83880222.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22208799 and 22208808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22208831) 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 7 ways as a sum of consecutive naturals, for example, 63645 + ... + 63992.

It is an arithmetic number, because the mean of its divisors is an integer number (2871855).

Almost surely, 2^22208838 is an apocalyptic number.

22208838 is an abundant number, since it is smaller than the sum of its proper divisors (23740842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22208838 is a wasteful number, since it uses less digits than its factorization.

22208838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127671.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 22208838 is about 4712.6253829474. The cubic root of 22208838 is about 281.0877669806.

The spelling of 22208838 in words is "twenty-two million, two hundred eight thousand, eight hundred thirty-eight".