2195836928 has 52 divisors (see below), whose sum is σ = 4510128420. Its totient is φ = 1068171264.

The previous prime is 2195836921. The next prime is 2195836939. The reversal of 2195836928 is 8296385912.

It can be written as a sum of positive squares in 2 ways, for example, as 1163628544 + 1032208384 = 34112^2 + 32128^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2195836928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195836921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144308 + ... + 158796.

Almost surely, 2^2195836928 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 2195836928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2255064210).

2195836928 is an abundant number, since it is smaller than the sum of its proper divisors (2314291492).

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

2195836928 is an equidigital number, since it uses as much as digits as its factorization.

2195836928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14550 (or 14528 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 2195836928 is about 46859.7580872970. The cubic root of 2195836928 is about 1299.7705567455.

The spelling of 2195836928 in words is "two billion, one hundred ninety-five million, eight hundred thirty-six thousand, nine hundred twenty-eight".