22089138 has 8 divisors (see below), whose sum is σ = 44178288. Its totient is φ = 7363044.

The previous prime is 22089121. The next prime is 22089157. The reversal of 22089138 is 83198022.

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

22089138 is an admirable number.

It is a super-3 number, since 3×22089138³ (a number of 23 digits) contains 333 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 junction number, because it is equal to n+sod(n) for n = 22089099 and 22089108.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1840756 + ... + 1840767.

It is an arithmetic number, because the mean of its divisors is an integer number (5522286).

Almost surely, 2^22089138 is an apocalyptic number.

22089138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22089138 is a wasteful number, since it uses less digits than its factorization.

22089138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681528.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 22089138 is about 4699.9082969777. The cubic root of 22089138 is about 280.5818597447.

The spelling of 22089138 in words is "twenty-two million, eighty-nine thousand, one hundred thirty-eight".