22172622 has 8 divisors (see below), whose sum is σ = 44345256. Its totient is φ = 7390872.

The previous prime is 22172609. The next prime is 22172627. The reversal of 22172622 is 22627122.

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

22172622 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 22172592 and 22172601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22172627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1847713 + ... + 1847724.

It is an arithmetic number, because the mean of its divisors is an integer number (5543157).

Almost surely, 2^22172622 is an apocalyptic number.

22172622 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.

22172622 is a wasteful number, since it uses less digits than its factorization.

22172622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695442.

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

The square root of 22172622 is about 4708.7813710131. The cubic root of 22172622 is about 280.9348937110.

Adding to 22172622 its reverse (22627122), we get a palindrome (44799744).

The spelling of 22172622 in words is "twenty-two million, one hundred seventy-two thousand, six hundred twenty-two".