22162170 has 64 divisors (see below), whose sum is σ = 57024000. Its totient is φ = 5495616.

The previous prime is 22162163. The next prime is 22162199. The reversal of 22162170 is 7126122.

22162170 = 1071² + 1072² + ... + 1089².

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 31 ways as a sum of consecutive naturals, for example, 33301 + ... + 33959.

It is an arithmetic number, because the mean of its divisors is an integer number (891000).

Almost surely, 2^22162170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22162170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28512000).

22162170 is an abundant number, since it is smaller than the sum of its proper divisors (34861830).

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

22162170 is a wasteful number, since it uses less digits than its factorization.

22162170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 22162170 is about 4707.6713988978. The cubic root of 22162170 is about 280.8907432715.

Adding to 22162170 its reverse (7126122), we get a palindrome (29288292).

The spelling of 22162170 in words is "twenty-two million, one hundred sixty-two thousand, one hundred seventy".