2206816389 has 48 divisors (see below), whose sum is σ = 3403079680. Its totient is φ = 1374135840.

The previous prime is 2206816387. The next prime is 2206816411. The reversal of 2206816389 is 9836186022.

2206816389 is a `hidden beast` number, since 2 + 2 + 0 + 6 + 8 + 1 + 638 + 9 = 666.

It is not a de Polignac number, because 2206816389 - 2¹ = 2206816387 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 (2206816387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6666954 + ... + 6667284.

Almost surely, 2^2206816389 is an apocalyptic number.

It is an amenable number.

2206816389 is a deficient number, since it is larger than the sum of its proper divisors (1196263291).

2206816389 is a wasteful number, since it uses less digits than its factorization.

2206816389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 2206816389 is about 46976.7643521773. The cubic root of 2206816389 is about 1301.9332948759.

The spelling of 2206816389 in words is "two billion, two hundred six million, eight hundred sixteen thousand, three hundred eighty-nine".