22262172 has 24 divisors (see below), whose sum is σ = 52087056. Its totient is φ = 7400448.

The previous prime is 22262147. The next prime is 22262203. The reversal of 22262172 is 27126222.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2428 + ... + 7100.

It is an arithmetic number, because the mean of its divisors is an integer number (2170294).

Almost surely, 2^22262172 is an apocalyptic number.

It is an amenable number.

22262172 is an abundant number, since it is smaller than the sum of its proper divisors (29824884).

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

22262172 is a wasteful number, since it uses less digits than its factorization.

22262172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5077 (or 5075 counting only the distinct ones).

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

The square root of 22262172 is about 4718.2806190391. The cubic root of 22262172 is about 281.3125956478.

Adding to 22262172 its reverse (27126222), we get a palindrome (49388394).

The spelling of 22262172 in words is "twenty-two million, two hundred sixty-two thousand, one hundred seventy-two".