26217222 has 8 divisors (see below), whose sum is σ = 52434456. Its totient is φ = 8739072.

The previous prime is 26217209. The next prime is 26217223. The reversal of 26217222 is 22271262.

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

26217222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 26217192 and 26217201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26217223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2184763 + ... + 2184774.

It is an arithmetic number, because the mean of its divisors is an integer number (6554307).

Almost surely, 2^26217222 is an apocalyptic number.

26217222 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.

26217222 is a wasteful number, since it uses less digits than its factorization.

26217222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369542.

The product of its digits is 1344, while the sum is 24.

The square root of 26217222 is about 5120.2755785211. The cubic root of 26217222 is about 297.0723446072.

Adding to 26217222 its reverse (22271262), we get a palindrome (48488484).

The spelling of 26217222 in words is "twenty-six million, two hundred seventeen thousand, two hundred twenty-two".