2019228 has 12 divisors (see below), whose sum is σ = 4711560. Its totient is φ = 673072.

The previous prime is 2019223. The next prime is 2019257. The reversal of 2019228 is 8229102.

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

It is a junction number, because it is equal to n+sod(n) for n = 2019198 and 2019207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84123 + ... + 84146.

It is an arithmetic number, because the mean of its divisors is an integer number (392630).

2^2019228 is an apocalyptic number.

It is an amenable number.

2019228 is an abundant number, since it is smaller than the sum of its proper divisors (2692332).

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

2019228 is a wasteful number, since it uses less digits than its factorization.

2019228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168276 (or 168274 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2019228 is about 1420.9954257491. The cubic root of 2019228 is about 126.3945806308.

It can be divided in two parts, 201922 and 8, that added together give a triangular number (201930 = T₆₃₅).

The spelling of 2019228 in words is "two million, nineteen thousand, two hundred twenty-eight".