2195118940 has 48 divisors (see below), whose sum is σ = 5273456832. Its totient is φ = 751873536.

The previous prime is 2195118929. The next prime is 2195118941. The reversal of 2195118940 is 498115912.

It is a junction number, because it is equal to n+sod(n) for n = 2195118893 and 2195118902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195118941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146434 + ... + 160726.

It is an arithmetic number, because the mean of its divisors is an integer number (109863684).

Almost surely, 2^2195118940 is an apocalyptic number.

2195118940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2195118940 is an abundant number, since it is smaller than the sum of its proper divisors (3078337892).

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

2195118940 is a wasteful number, since it uses less digits than its factorization.

2195118940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15406 (or 15404 counting only the distinct ones).

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

The square root of 2195118940 is about 46852.0964312164. The cubic root of 2195118940 is about 1299.6288763103.

The spelling of 2195118940 in words is "two billion, one hundred ninety-five million, one hundred eighteen thousand, nine hundred forty".