2195810436 has 24 divisors (see below), whose sum is σ = 5262033280. Its totient is φ = 712154592.

The previous prime is 2195810417. The next prime is 2195810443. The reversal of 2195810436 is 6340185912.

It is a junction number, because it is equal to n+sod(n) for n = 2195810394 and 2195810403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2472316 + ... + 2473203.

Almost surely, 2^2195810436 is an apocalyptic number.

It is an amenable number.

2195810436 is an abundant number, since it is smaller than the sum of its proper divisors (3066222844).

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

2195810436 is a wasteful number, since it uses less digits than its factorization.

2195810436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945563 (or 4945561 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 2195810436 is about 46859.4754131968. The cubic root of 2195810436 is about 1299.7653296330.

The spelling of 2195810436 in words is "two billion, one hundred ninety-five million, eight hundred ten thousand, four hundred thirty-six".