1995808 has 24 divisors (see below), whose sum is σ = 4015872. Its totient is φ = 975936.

The previous prime is 1995797. The next prime is 1995827. The reversal of 1995808 is 8085991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841 + ... + 2167.

It is an arithmetic number, because the mean of its divisors is an integer number (167328).

2^1995808 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 1995808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2007936).

1995808 is an abundant number, since it is smaller than the sum of its proper divisors (2020064).

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

1995808 is a wasteful number, since it uses less digits than its factorization.

1995808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 1995808 is about 1412.7306891266. The cubic root of 1995808 is about 125.9040169326.

The spelling of 1995808 in words is "one million, nine hundred ninety-five thousand, eight hundred eight".