2859808 has 48 divisors (see below), whose sum is σ = 6822144. Its totient is φ = 1152000.

The previous prime is 2859803. The next prime is 2859847. The reversal of 2859808 is 8089582.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2859803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3433 + ... + 4183.

It is an arithmetic number, because the mean of its divisors is an integer number (142128).

2^2859808 is an apocalyptic number.

2859808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2859808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3411072).

2859808 is an abundant number, since it is smaller than the sum of its proper divisors (3962336).

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

2859808 is a wasteful number, since it uses less digits than its factorization.

2859808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 2859808 is about 1691.0966855860. The cubic root of 2859808 is about 141.9424484097.

The spelling of 2859808 in words is "two million, eight hundred fifty-nine thousand, eight hundred eight".