2009828 has 12 divisors (see below), whose sum is σ = 3575292. Its totient is φ = 988320.

The previous prime is 2009827. The next prime is 2009831. The reversal of 2009828 is 8289002.

It can be written as a sum of positive squares in 2 ways, for example, as 550564 + 1459264 = 742^2 + 1208^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2009828.

It is not an unprimeable number, because it can be changed into a prime (2009827) 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, 3875 + ... + 4362.

It is an arithmetic number, because the mean of its divisors is an integer number (297941).

2^2009828 is an apocalyptic number.

It is an amenable number.

2009828 is a deficient number, since it is larger than the sum of its proper divisors (1565464).

2009828 is a wasteful number, since it uses less digits than its factorization.

2009828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8302 (or 8300 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 2009828 is about 1417.6840268551. The cubic root of 2009828 is about 126.1981429349.

The spelling of 2009828 in words is "two million, nine thousand, eight hundred twenty-eight".