2198065399 has 6 divisors (see below), whose sum is σ = 2234693760. Its totient is φ = 2162027880.

The previous prime is 2198065367. The next prime is 2198065409. The reversal of 2198065399 is 9935608912.

It is not a de Polignac number, because 2198065399 - 2⁵ = 2198065367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198065339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 291639 + ... + 299080.

It is an arithmetic number, because the mean of its divisors is an integer number (372448960).

Almost surely, 2^2198065399 is an apocalyptic number.

2198065399 is a deficient number, since it is larger than the sum of its proper divisors (36628361).

2198065399 is an frugal number, since it uses more digits than its factorization.

2198065399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590841 (or 590780 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 52.

The square root of 2198065399 is about 46883.5301465237. The cubic root of 2198065399 is about 1300.2101039113.

The spelling of 2198065399 in words is "two billion, one hundred ninety-eight million, sixty-five thousand, three hundred ninety-nine".