2109019228 has 12 divisors (see below), whose sum is σ = 3885035560. Its totient is φ = 999009072.

The previous prime is 2109019223. The next prime is 2109019243. The reversal of 2109019228 is 8229109012.

It is a junction number, because it is equal to n+sod(n) for n = 2109019193 and 2109019202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109019223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13875051 + ... + 13875202.

Almost surely, 2^2109019228 is an apocalyptic number.

It is an amenable number.

2109019228 is a deficient number, since it is larger than the sum of its proper divisors (1776016332).

2109019228 is a wasteful number, since it uses less digits than its factorization.

2109019228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27750276 (or 27750274 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 2109019228 is about 45924.0593589025. The cubic root of 2109019228 is about 1282.4098538424.

The spelling of 2109019228 in words is "two billion, one hundred nine million, nineteen thousand, two hundred twenty-eight".