2195936290 has 16 divisors (see below), whose sum is σ = 3954997368. Its totient is φ = 877860736.

The previous prime is 2195936279. The next prime is 2195936297. The reversal of 2195936290 is 926395912.

It can be written as a sum of positive squares in 4 ways, for example, as 2063248929 + 132687361 = 45423^2 + 11519^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2195936290.

It is not an unprimeable number, because it can be changed into a prime (2195936297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46027 + ... + 80686.

Almost surely, 2^2195936290 is an apocalyptic number.

2195936290 is a deficient number, since it is larger than the sum of its proper divisors (1759061078).

2195936290 is a wasteful number, since it uses less digits than its factorization.

2195936290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128453.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 2195936290 is about 46860.8182813745. The cubic root of 2195936290 is about 1299.7901613971.

The spelling of 2195936290 in words is "two billion, one hundred ninety-five million, nine hundred thirty-six thousand, two hundred ninety".