2009196 has 108 divisors (see below), whose sum is σ = 6348888. Its totient is φ = 532224.

The previous prime is 2009191. The next prime is 2009209. The reversal of 2009196 is 6919002.

2009196 = 178² + 179² + ... + 226².

It is a happy number.

2009196 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2009191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29955 + ... + 30021.

It is an arithmetic number, because the mean of its divisors is an integer number (58786).

2^2009196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2009196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3174444).

2009196 is an abundant number, since it is smaller than the sum of its proper divisors (4339692).

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

2009196 is a wasteful number, since it uses less digits than its factorization.

2009196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 2009196 is about 1417.4611105776. The cubic root of 2009196 is about 126.1849136789.

The spelling of 2009196 in words is "two million, nine thousand, one hundred ninety-six".