2195740764 has 144 divisors (see below), whose sum is σ = 6703200000. Its totient is φ = 619672032.

The previous prime is 2195740741. The next prime is 2195740849. The reversal of 2195740764 is 4670475912.

2195740764 is a `hidden beast` number, since 2 + 1 + 9 + 574 + 0 + 76 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 436737 + ... + 441735.

It is an arithmetic number, because the mean of its divisors is an integer number (46550000).

Almost surely, 2^2195740764 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 2195740764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3351600000).

2195740764 is an abundant number, since it is smaller than the sum of its proper divisors (4507459236).

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

2195740764 is a wasteful number, since it uses less digits than its factorization.

2195740764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109 (or 5094 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 2195740764 is about 46858.7319930875. The cubic root of 2195740764 is about 1299.7515825131.

The spelling of 2195740764 in words is "two billion, one hundred ninety-five million, seven hundred forty thousand, seven hundred sixty-four".