2195670890 has 24 divisors (see below), whose sum is σ = 4597467012. Its totient is φ = 752801280.

The previous prime is 2195670877. The next prime is 2195670901. The reversal of 2195670890 is 980765912.

It can be written as a sum of positive squares in 2 ways, for example, as 2096449369 + 99221521 = 45787^2 + 9961^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2239991 + ... + 2240970.

Almost surely, 2^2195670890 is an apocalyptic number.

2195670890 is an abundant number, since it is smaller than the sum of its proper divisors (2401796122).

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

2195670890 is a wasteful number, since it uses less digits than its factorization.

2195670890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480982 (or 4480975 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 2195670890 is about 46857.9864057345. The cubic root of 2195670890 is about 1299.7377952441.

The spelling of 2195670890 in words is "two billion, one hundred ninety-five million, six hundred seventy thousand, eight hundred ninety".