2195950380 has 96 divisors (see below), whose sum is σ = 6672492288. Its totient is φ = 536390400.

The previous prime is 2195950349. The next prime is 2195950391. The reversal of 2195950380 is 830595912.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91435 + ... + 112925.

It is an arithmetic number, because the mean of its divisors is an integer number (69505128).

Almost surely, 2^2195950380 is an apocalyptic number.

2195950380 is a gapful number since it is divisible by the number (20) 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 2195950380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3336246144).

2195950380 is an abundant number, since it is smaller than the sum of its proper divisors (4476541908).

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

2195950380 is a wasteful number, since it uses less digits than its factorization.

2195950380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21647 (or 21645 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 2195950380 is about 46860.9686199507. The cubic root of 2195950380 is about 1299.7929413813.

The spelling of 2195950380 in words is "two billion, one hundred ninety-five million, nine hundred fifty thousand, three hundred eighty".