2174228 has 18 divisors (see below), whose sum is σ = 4426506. Its totient is φ = 931728.

The previous prime is 2174203. The next prime is 2174243. The reversal of 2174228 is 8224712.

It can be written as a sum of positive squares in only one way, i.e., 2079364 + 94864 = 1442^2 + 308^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2174197 and 2174206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5351 + ... + 5742.

It is an arithmetic number, because the mean of its divisors is an integer number (245917).

2^2174228 is an apocalyptic number.

2174228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2174228 is an abundant number, since it is smaller than the sum of its proper divisors (2252278).

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

2174228 is a wasteful number, since it uses less digits than its factorization.

2174228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111 (or 11102 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 2174228 is about 1474.5263646337. The cubic root of 2174228 is about 129.5492873018.

The spelling of 2174228 in words is "two million, one hundred seventy-four thousand, two hundred twenty-eight".