2028222 has 24 divisors (see below), whose sum is σ = 5022576. Its totient is φ = 579456.

The previous prime is 2028217. The next prime is 2028223. The reversal of 2028222 is 2228202.

It is a super-2 number, since 2×2028222² = 8227368962568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2028195 and 2028204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7923 + ... + 8174.

It is an arithmetic number, because the mean of its divisors is an integer number (209274).

2^2028222 is an apocalyptic number.

2028222 is an abundant number, since it is smaller than the sum of its proper divisors (2994354).

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

2028222 is a wasteful number, since it uses less digits than its factorization.

2028222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16112 (or 16109 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2028222 is about 1424.1565925136. The cubic root of 2028222 is about 126.5819639932.

The spelling of 2028222 in words is "two million, twenty-eight thousand, two hundred twenty-two".