1995800 has 48 divisors (see below), whose sum is σ = 4921560. Its totient is φ = 750080.

The previous prime is 1995797. The next prime is 1995827. The reversal of 1995800 is 85991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3107 + ... + 3693.

2^1995800 is an apocalyptic number.

1995800 is a gapful number since it is divisible by the number (10) 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 1995800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2460780).

1995800 is an abundant number, since it is smaller than the sum of its proper divisors (2925760).

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

1995800 is a wasteful number, since it uses less digits than its factorization.

1995800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1995800 is about 1412.7278577277. The cubic root of 1995800 is about 125.9038487077.

The spelling of 1995800 in words is "one million, nine hundred ninety-five thousand, eight hundred".