2222164 has 24 divisors (see below), whose sum is σ = 4679360. Its totient is φ = 902016.

The previous prime is 2222147. The next prime is 2222167. The reversal of 2222164 is 4612222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1557 + ... + 2620.

2^2222164 is an apocalyptic number.

It is an amenable number.

2222164 is an abundant number, since it is smaller than the sum of its proper divisors (2457196).

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

2222164 is a wasteful number, since it uses less digits than its factorization.

2222164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207 (or 4205 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 2222164 is about 1490.6924565449. The cubic root of 2222164 is about 130.4944483675.

Adding to 2222164 its reverse (4612222), we get a palindrome (6834386).

The spelling of 2222164 in words is "two million, two hundred twenty-two thousand, one hundred sixty-four".