2228172 has 12 divisors (see below), whose sum is σ = 5199096. Its totient is φ = 742720.

The previous prime is 2228167. The next prime is 2228183. The reversal of 2228172 is 2718222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×2228172³ = 33186953896465633344, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92829 + ... + 92852.

It is an arithmetic number, because the mean of its divisors is an integer number (433258).

2^2228172 is an apocalyptic number.

It is an amenable number.

2228172 is an abundant number, since it is smaller than the sum of its proper divisors (2970924).

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

2228172 is a wasteful number, since it uses less digits than its factorization.

2228172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185688 (or 185686 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 2228172 is about 1492.7062671537. The cubic root of 2228172 is about 130.6119472165.

The spelling of 2228172 in words is "two million, two hundred twenty-eight thousand, one hundred seventy-two".