2195744900 has 36 divisors (see below), whose sum is σ = 4770389988. Its totient is φ = 877261440.

The previous prime is 2195744893. The next prime is 2195744917. The reversal of 2195744900 is 94475912.

It can be written as a sum of positive squares in 6 ways, for example, as 4194304 + 2191550596 = 2048^2 + 46814^2 .

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, 75182 + ... + 100218.

It is an arithmetic number, because the mean of its divisors is an integer number (132510833).

Almost surely, 2^2195744900 is an apocalyptic number.

2195744900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2195744900 is an abundant number, since it is smaller than the sum of its proper divisors (2574645088).

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

2195744900 is a wasteful number, since it uses less digits than its factorization.

2195744900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25928 (or 25921 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 2195744900 is about 46858.7761257163. The cubic root of 2195744900 is about 1299.7523986036.

The spelling of 2195744900 in words is "two billion, one hundred ninety-five million, seven hundred forty-four thousand, nine hundred".