2195800 has 24 divisors (see below), whose sum is σ = 5105700. Its totient is φ = 878240.

The previous prime is 2195777. The next prime is 2195801. The reversal of 2195800 is 85912.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5290 + ... + 5689.

2^2195800 is an apocalyptic number.

2195800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2195800 is an abundant number, since it is smaller than the sum of its proper divisors (2909900).

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

2195800 is a wasteful number, since it uses less digits than its factorization.

2195800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10995 (or 10986 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2195800 is about 1481.8232013300. The cubic root of 2195800 is about 129.9763270504.

The spelling of 2195800 in words is "two million, one hundred ninety-five thousand, eight hundred".