2222228 has 6 divisors (see below), whose sum is σ = 3888906. Its totient is φ = 1111112.

The previous prime is 2222219. The next prime is 2222239. The reversal of 2222228 is 8222222.

It can be written as a sum of positive squares in only one way, i.e., 1993744 + 228484 = 1412^2 + 478^2 .

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277775 + ... + 277782.

It is an arithmetic number, because the mean of its divisors is an integer number (648151).

2^2222228 is an apocalyptic number.

It is an amenable number.

2222228 is a deficient number, since it is larger than the sum of its proper divisors (1666678).

2222228 is a wasteful number, since it uses less digits than its factorization.

2222228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555561 (or 555559 counting only the distinct ones).

The product of its digits is 512, while the sum is 20.

The square root of 2222228 is about 1490.7139229242. The cubic root of 2222228 is about 130.4957011350.

The spelling of 2222228 in words is "two million, two hundred twenty-two thousand, two hundred twenty-eight".